Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
- BATMAN™
- BIONICLE
- Building Set with People
- Castle
- Duplo
- Fabuland
- Harry Potter
- Holiday and Event
- LEGOLAND
- Model Team
- Pirates
- Space
- Star Wars
- Technic
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space

6901 – Back D

August 28, 2023March 14, 2025 Master Builder 3261 Views

From: 6901: Mobile Lab
Name: Grabber Lab ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted August 28, 2023 by: Mr.AstonishedRaccoon

← 6901 – Back C
854 – Front →

You May Also Like

6630 – Back B

October 13, 2021October 13, 2021 Master Builder

6971 – Back B

September 14, 2019September 28, 2019 Master Builder

735 – Back A

December 18, 2023December 28, 2023 Master Builder

7260 – Back B

March 1, 2023March 3, 2023 Master Builder

6404 – Bottom

January 6, 2025January 6, 2025 Master Builder

6473 – Back A

January 20, 2022January 20, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Coast Guard Official Sets Small Builds Town Town Sets

6518: Baja Buggy

May 23, 2022May 23, 2022 Master Builder

Year Released: 1996BricklinkInstructions

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6279: Skull Island

February 21, 2025February 21, 2025 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4719: Quality Quidditch Supplies

March 22, 2025March 22, 2025 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6530: Sport Coupe (City Car)

April 4, 2020April 19, 2021 Master Builder

Official Sets Outback Small Builds Town Town Sets

6487: Mountain Rescue

July 25, 2022July 25, 2022 Master Builder

Classic Town Construction Medium Builds Official Sets Town Town Sets

6361: Mobile Crane

April 9, 2020April 9, 2020 Master Builder

Official Sets Space Port Town Town Sets Very Small Builds

6458: Satellite with Astronaut

December 17, 2025December 17, 2025 Master Builder

Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets

6264: Forbidden Cove

July 1, 2022July 1, 2022 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

6355: Derby Trotter

December 28, 2021December 28, 2021 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7161: Gungan Sub

April 21, 2026April 21, 2026 Master Builder

Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

1818: Aircraft and Ground Support Equipment and Vehicle

April 7, 2025April 7, 2025 Master Builder

Aquazone Aquazone Sets Hydronauts Official Sets Small Builds

6110: Solo Sub

February 13, 2025February 13, 2025 Master Builder

Insectoids Insectoids Sets Large Builds Official Sets

6919: Planetary Prowler

November 9, 2019November 9, 2019 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6501: Sport Convertible

July 8, 2022July 8, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6874: Moon Rover

November 6, 2023November 6, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

Adventurers
Aquazone
BATMAN
Bionicle
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
Town
Universal Building Set
Western
More Sets
Misc

Useful Links

Submit Instructions!
New Instructions
New Official Sets
New Alternate Builds
Minifigs
Very Small Builds (<35 pcs)
Small Builds (<100 pcs)
Medium Builds (<200 pcs)
Large Builds (<400 pcs)
Extra Large Builds (>400 pcs)
How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.