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
- Train
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Airport Alternate Builds LEGOLAND LEGOLAND Alternate Builds Small Builds

371-3 – Top B

October 8, 2024October 8, 2024 Master Builder 4668 Views

From: 371: Seaplane
Name: TBD
Submitted by: USER
Instructions

← 371-3 – Top A
371-3 – Bottom A →

You May Also Like

6357 – Back A

May 18, 2022May 23, 2022 Master Builder

6648 – Back C

May 18, 2022May 23, 2022 Master Builder

735 – Back D

December 18, 2023December 28, 2023 Master Builder

6335 – Back B

December 22, 2023January 1, 2024 Master Builder

6385 – Back A

August 7, 2022August 7, 2022 Master Builder

7779 – Instructions A

June 22, 2026June 25, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

Box Plus Mask Medium Builds Official Sets UFO UFO Sets

6999: Cyber Saucer with Promotional Mask

December 16, 2025December 16, 2025 Master Builder

Year Released: 1997Bricklink

Arctic Medium Builds Official Sets Town Town Sets

6573: Arctic Expedition

May 22, 2026May 22, 2026 Master Builder

Episode II Medium Builds Official Sets Star Wars Star Wars Sets

7143: Jedi Starfighter

December 29, 2021December 29, 2021 Master Builder

Classic Town Official Sets Recreation Town Town Sets Very Small Builds

6534: Beach Bandit

July 8, 2022July 8, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6805: Astro Dasher

December 10, 2025December 10, 2025 Master Builder

Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets

6209: Slave I (2nd edition)

February 1, 2024February 1, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6871: Star Patrol Launcher

September 27, 2019September 30, 2019 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Small Builds

4940: Granite Grinder

April 4, 2020April 4, 2020 Master Builder

Classic Space Classic Space Sets Official Sets Space Supplemental

454: Two Lunar Landing Plates

July 11, 2024July 11, 2024 Master Builder

Official Sets Small Builds Town Town Sets

1496: Rally Car

October 20, 2019October 8, 2024 Master Builder

Episode I Extra Large Builds Official Sets Star Wars Star Wars Sets Star Wars Technic Technic

8002: Destroyer Droid

August 17, 2023September 1, 2023 Master Builder

Classic Town Extra Large Builds Fire Official Sets Town Town Sets

6389: Fire Control Center

January 24, 2022January 24, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6807: Space Sledge with Astronaut and Robot

November 21, 2023November 21, 2023 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

607: Mini Loader

October 19, 2019April 4, 2020 Master Builder

Castle Castle Sets Official Sets Very Small Builds

2586: King & Throne (Chess King)

January 29, 2021January 29, 2021 Master Builder

Divers Medium Builds Official Sets Town Town Sets

6558: Shark Cage Cove

December 29, 2021December 29, 2021 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
Train
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.