# LEGO 3826-1 — Build-A-Bob (2006)

Source: https://www.brickmissing.com/sets/3826-1-build-a-bob
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

Chaos erupts in Bikini Bottom with the LEGO SpongeBob SquarePants Build-A-Bob (3826-1) set, capturing a moment when Plankton seizes control of SpongeBob's brain. This sizable SpongeBob figure, standing over 11.5 inches (29.2 cm) tall, features play functions for interactive scenarios. Builders can animate SpongeBob, making him spin his eyes, launch jellyfish from his mouth, and change his facial expression from a frown to a smile. The set includes a Plankton minifigure, overseeing his machinations, alongside jellyfish projectiles. Internal Technic mechanisms drive these movements, enabling engaging, repeatable play within the model.

## Set facts

- Set number: 3826-1
- Name: Build-A-Bob
- Theme: SpongeBob SquarePants
- Released: 2006
- Pieces: 445
- Distinct part + colour lots: 116
- Build difficulty: intermediate
- Repairability: 4.3% of this set's lots are hard to replace (5 of 116 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (116 lots, 445 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 2 | Brick 4 x 6 | Light Bluish Gray | 2356 | 4217371 | — |
| 4 | Brick 2 x 2 Corner | Black | 2357 | 235726 | €0,16 |
| 3 | Tile Special 1 x 2 Grille with Bottom Groove | Light Bluish Gray | 2412b | 4211350 | €0,06 |
| 1 | Tile 1 x 4 with Train Controls Print | Dark Bluish Gray | 2431pr0028 | 4215740 | — |
| 32 | Slope Inverted 75° 2 x 1 x 3 | Yellow | 2449 | 6546481 | €0,23 |
| 7 | Brick 2 x 6 | Yellow | 2456 | 4181143 | €0,29 |
| 2 | Brick 2 x 6 | White | 2456 | 4181142 | €0,29 |
| 2 | Brick 1 x 16 | Yellow | 2465 | 246524 | — |
| 2 | Tile Special 1 x 1 with Clip and Straight Tips | Black | 2555 | 255526 | — |
| 4 | Brick Round Corner 4 x 4 Full Brick | Black | 2577 | 6188426 | €0,64 |
| 6 | Lever Small Base with Black Lever | Black | 298c02 | 73587 | €0,19 |
| 1 | Lever Small Base with Black Lever | Red | 298c02 | 74335 | €0,19 |
| 2 | Brick Special 2 x 2 with 2 Pins and Axle Hole | Black | 30000 | 3000023 | — |
| 2 | Brick 2 x 4 | Light Bluish Gray | 3001 | 4211385 | €0,22 |
| 4 | Brick 2 x 2 | Black | 3003 | 300326 | €0,13 |
| 10 | Brick 2 x 2 | Yellow | 3003 | 300324 | €0,13 |
| 3 | Brick 2 x 2 | Light Bluish Gray | 3003 | 4211387 | €0,13 |
| 7 | Brick 1 x 2 | Dark Bluish Gray | 3004 | 4211088 | €0,11 |
| 6 | Brick 1 x 2 | Reddish Brown | 3004 | 4211149 | €0,11 |
| 6 | Brick 1 x 2 | Black | 3004 | 300426 | €0,11 |
| 24 | Brick 1 x 2 | Yellow | 3004 | 300424 | €0,11 |
| 18 | Brick 1 x 1 | Yellow | 3005 | 300524 | €0,07 |
| 8 | Brick 1 x 1 | Black | 3005 | 300526 | €0,07 |
| 2 | Brick 1 x 6 | Black | 3009 | 300926 | €0,25 |
| 26 | Brick 1 x 6 | Yellow | 3009 | 300924 | €0,25 |
| 2 | Brick 1 x 6 | White | 3009 | 300901 | €0,25 |
| 5 | Brick 1 x 4 | White | 3010 | 301001 | €0,16 |
| 8 | Brick 1 x 4 | Reddish Brown | 3010 | 4211225 | €0,16 |
| 14 | Brick 1 x 4 | Yellow | 3010 | 301024 | €0,16 |
| 2 | Plate 2 x 4 | White | 3020 | 302001 | €0,15 |
| 4 | Plate 2 x 2 | White | 3022 | 302201 | €0,10 |
| 3 | Plate 1 x 2 | White | 3023 | 302301 | €0,08 |
| 3 | Plate 1 x 2 | Yellow | 3023 | 302324 | €0,08 |
| 2 | Plate 4 x 4 | Dark Bluish Gray | 3031 | 4243831 | €0,21 |
| 4 | Plate 4 x 6 | Yellow | 3032 | 303224 | €0,41 |
| 3 | Plate 6 x 10 | Yellow | 3033 | 303324 | €0,71 |
| 2 | Plate 2 x 8 | Dark Bluish Gray | 3034 | 4210997 | €0,29 |
| 4 | Plate Round Corner 3 x 3 | Dark Bluish Gray | 30357 | 4212075 | €0,17 |
| 1 | Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder | Yellow | 30367b | 4185784 | — |
| 4 | Slope 45? 2 x 2 | Black | 3039 | 303926 | €0,11 |
| 1 | Slope 45° 2 x 2 with Radar Screen Print | White | 3039pr0005 | 4261941 | — |
| 4 | Slope 45° 2 x 1 with Bottom Pin | Black | 3040b | 4121966 | €0,10 |
| 3 | Brick Special 1 x 4 with 4 Studs on One Side | Red | 30414 | 4157223 | €0,18 |
| 4 | Plate Round Corner 4 x 4 | Dark Bluish Gray | 30565 | 4222042 | €0,18 |
| 8 | Brick Round Corner 2 x 2 Macaroni with Stud Notch | Black | 3063b | 306326 | — |
| 2 | Tile 2 x 2 with Groove | Red | 3068b | 306821 | €0,07 |
| 2 | Tile 1 x 2 with Groove | Yellow | 3069b | 306924 | €0,07 |
| 1 | Tile 1 x 2 with Computer Keyboard Standard Print | White | 3069bpr0030 | 4293350 | — |
| 1 | Plate Special 3 x 2 with Rounded End, Hole | Yellow | 3176 | 4188313 | €0,12 |
| 1 | Technic Axle and Pin Connector Angled #1 | Black | 32013 | 6284699 | €0,08 |
| 1 | Technic Axle and Pin Connector Angled #2 - 180° | Black | 32034 | 6271869 | €0,11 |
| 1 | Technic Axle 2 Notched | Red | 32062 | 4142865 | €0,07 |
| 2 | Technic Bush 1/2 Smooth with Axle Hole Reduced | Tan | 32123a | 4206210 | — |
| 1 | Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] | Light Bluish Gray | 32269 | 32269194 | — |
| 2 | Technic Gear 12 Tooth Double Bevel | Light Bluish Gray | 32270 | 32270194 | — |
| 1 | Technic Gear 36 Tooth Double Bevel | Black | 32498 | 4255563 | €0,90 |
| 1 | Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside | Yellow | 3307 | 330724 | — |
| 2 | Minifig Head [Plain] [Blocked Open Stud] | Trans-Clear | 3626b | 3001140 | — |
| 10 | Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] | Yellow | 3660 | 366024 | €0,15 |
| 1 | Plate 1 x 6 | Red | 3666 | 366621 | €0,17 |
| 6 | Plate 1 x 6 | Yellow | 3666 | 366624 | €0,17 |
| 8 | Technic Brick 1 x 2 [1 Pin Hole] | Tan | 3700 | 4205107 | €0,12 |
| 1 | Technic Axle 4 | Black | 3705 | 370526 | €0,08 |
| 1 | Plate 1 x 4 | White | 3710 | 371001 | €0,12 |
| 2 | Technic Axle 10 | Black | 3737 | 373726 | €0,25 |
| 2 | Technic Axle Pin without Friction Ridges Lengthwise | Tan | 3749 | 4666579 | €0,06 |
| 4 | Plate 2 x 6 | Yellow | 3795 | 379524 | €0,19 |
| 3 | Plate 2 x 6 | Reddish Brown | 3795 | 4211247 | €0,19 |
| 1 | Plate 2 x 6 | Red | 3795 | 379521 | €0,19 |
| 1 | Technic Brick 1 x 6 [5 Pin Holes] | Yellow | 3894 | 389424 | €0,29 |
| 4 | Hat, Chef / Baker | Trans-Clear | 3898 | 4292835 | — |
| 1 | Hinge Brick 1 x 2 Base | Yellow | 3937 | 393724 | €0,10 |
| 1 | Hinge Brick 1 x 2 Top Plate Thin | White | 3938 | 393801 | €0,10 |
| 6 | Brick Round 2 x 2 with Axle Hole | White | 3941 | 614301 | €0,11 |
| 6 | Brick Round 2 x 2 with Axle Hole | Yellow | 3941 | 614324 | €0,11 |
| 2 | Plate 6 x 6 | Reddish Brown | 3958 | 4217848 | €0,53 |
| 2 | Dish 8 x 8 Inverted [Radar] with Medium Blue Circle with Black Center Print | White | 3961pr0011 | 4293538 | — |
| 4 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | White | 4032a | 403201 | €0,06 |
| 3 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Red | 4032a | 403221 | €0,06 |
| 2 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Black | 4032a | 403223 | €0,06 |
| 6 | Brick Special 1 x 1 with Headlight | Yellow | 4070 | 407024 | €0,07 |
| 2 | Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] | Red | 4081b | 6281994 | €0,10 |
| 4 | Wedge 4 x 2 Right | Black | 41767 | 4160334 | — |
| 4 | Wedge 4 x 2 Left | Black | 41768 | 4160349 | — |
| 2 | Wedge Plate 4 x 2 Right | Dark Bluish Gray | 41769 | 4210782 | €0,11 |
| 2 | Wedge Plate 4 x 2 Left | Dark Bluish Gray | 41770 | 4210788 | €0,11 |
| 4 | Brick Curved 6 x 1 | Black | 42022 | 4160393 | €0,30 |
| 1 | Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] | Dark Bluish Gray | 43337 | 4210844 | — |
| 1 | Wedge Plate 3 x 2 Right | White | 43722 | 4179874 | €0,15 |
| 2 | Wedge Plate 3 x 2 Right | Red | 43722 | 4180504 | €0,15 |
| 2 | Wedge Plate 3 x 2 Left | Red | 43723 | 4180533 | €0,15 |
| 1 | Wedge Plate 3 x 2 Left | White | 43723 | 4179875 | €0,15 |
| 2 | Brick Curved 6 x 2 | Black | 44126 | 4180548 | €0,41 |
| 2 | Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove | Yellow | 44301a | 6411797 | €0,15 |
| 4 | Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth | Yellow | 44302a | 4183981 | — |
| 1 | Tap 1 x 1 with Hole in Spout | Light Bluish Gray | 4599a | 459928 | — |
| 1 | Dish 2 x 2 Inverted [Radar] | Black | 4740 | 474026 | €0,05 |
| 2 | Technic Brick Special 2 x 2 with Axle Hole, Rotation Joint Ball Half [Vertical Side], Vertical Axle Hole End | Yellow | 47431 | 4218234 | — |
| 2 | Technic Brick Special 2 x 3 with Pin Holes, Rotation Joint Ball Half [Horizontal Top], Rotation Joint Socket | Yellow | 47454 | 4218105 | — |
| 4 | Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction | Yellow | 47455 | 6518951 | €0,33 |
| 4 | Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs | Black | 48092 | 6252902 | €0,30 |
| 2 | Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Socket | White | 48169 | 4218483 | — |
| 1 | Plate Special 1 x 2 [Side Handle Closed Ends] | Black | 48336 | 4225201 | €0,07 |
| 1 | Sticker Sheet for Set 3826-1 | Unknown | 56215 | 4294107 | — |
| 2 | Brick Curved 2 x 4 x 1 1/3 | Yellow | 6081 | 4204625 | €0,27 |
| 4 | Brick Curved 1 x 2 x 1 1/3 with Curved Top | Yellow | 6091 | 6361082 | €0,08 |
| 4 | Brick 1 x 10 | Yellow | 6111 | 4200026 | €0,36 |
| 4 | Brick 1 x 12 | Reddish Brown | 6112 | 4222627 | €0,39 |
| 2 | Brick 1 x 12 | White | 6112 | 611201 | €0,39 |
| 1 | Plate Round 1 x 1 with Solid Stud | Trans-Dark Blue | 6141 | 6514055 | €0,05 |
| 1 | Plate Round 1 x 1 with Solid Stud | Trans-Yellow | 6141 | 6514056 | €0,05 |
| 2 | Plate Special 6 x 12 with Studs on 3 Edges | Yellow | 6178 | 4114431 | — |
| 2 | Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole | Reddish Brown | 6222 | 4223681 | — |
| 2 | Technic Axle 3 with Stud | Dark Bluish Gray | 6587 | 4211086 | — |
| 4 | Tile 1 x 6 with Groove | Black | 6636 | 663626 | €0,13 |
| 1 | Technic Rubber Belt Medium [26mm ID] [Round Cross Section] | Black | 85545 | 4286126 | — |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/3826-1-build-a-bob
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/3826-1-build-a-bob