There are MOCs utilizing whatever pieces at hand to create something unique and then there are alternates using only the parts included from a set to build something else. This thread (I have wanted to start for a while now) is meant to showcase such designs to help inspire your own well as display what can be done within such limited means. Anyway here are a few to get started.

 

31007 - Racing Car by Peteris Sprogis

 

70808 - Super Secret Police Spaceship by msx_80

 

Mobile Frame Zero - 41524, 41525, 41526 by dark_syntax

6866 Wolfsbane by JK Brickworks

 

31003 Robot by Biczzz

 

31006 F1 Racer by Biczzz

 

6913 Speedster by Vinny Turbo

 

4837 Shogun by lk.lkaz

 

6742 Robot by lk.lkaz

 

31007 Tank by Aphylliate

Note:
While the main point of this topic is primarily the usage of pieces within a single set to create a different model shown on the box, the mixing of two or more sets is permitted but the final product must only use those included pieces. Please list the set number(s) of any alternate design posted.

I loved piecing together the alternate builds on lego boxes when I was a kid.  Great thread idea!

I also found it to be a challenge to make all of the variations of a set that were pictured on either the box or the instructions. Apparently LEGO stopped doing this as there were too many parents contacting them about instructions for the alternate models and then they were upset when none were available. I say bring them back and let the kids figure things out on their own, or better yet, work on it with the kids.

I loved piecing together the alternate builds on lego boxes when I was a kid.  Great thread idea!

Thank you. I think designing any MOC is great but trying to create something only from what you are given poses an intriguing challenge that while sometimes frustrating is usually rewarding in the end. I know of a certain member at Eurobricks who not only builds good alternates but also ones that transform! They're absolutely brilliant in my opinion and I hope to showcase them here for others to see soon.

was breaking down the ucs ssd I though about an alt modular build might be possible. might have to find time

 

edit here's one i found  http://rebrickable.com/mocs/Brickmixer/lego-moc-congress-center

Edited November 30, 201411 yr by brickcrazyhouse

Here are some alternates for 31007 Power Mech over at Eurobricks.

• wallacechow2005 - LEGO Transformer

 

Including a bunch by bacem who is amazingly creative with this Creator set.

• Gran-Tron
• Neo Roller
• Road Crash
• Wheelsnap
• Choper
• Scappy
• Roadlord
• Skap
• Tracker

 

here's one i found  http://rebrickable.com/mocs/Brickmixer/lego-moc-congress-center

Awesome; that's exactly the stuff I'm talking about.

31024 Off Roader & 31006 GTO by Peteris Sprogis

 

Skyclops (70707 + 41515, 41516, & 41517) by ezrawibowo

 

40109 Mini MINI Cooper 10-in-1 by dark_syntax

http://www.flickr.com/photos/shgt/sets/72157649231239632/

70123 Lion Chimabot by samuelhkhon

5867 Classic 2 by NKubate

31009 Asymmetric house

 

31009 Snack Bar

 

5766 Tree house

 

4996 Town House

 

6754 Modern Residence

 

7346 Marina

 

31007 Transformer "Toxic" by NKubate

This thread has some nice Mocs ! I also enjoy building custom Lego models but I prefer to stick with bionicle

Just built my very first MOC alternate using only pieces from 31012 Family House. Wanted to try it out as a "modular" size house and this was the result

What do you think? Any recommendations?

Each level comes off easily as well, second floor and roof.

Just built my very first MOC alternate using only pieces from 31012 Family House. Wanted to try it out as a "modular" size house and this was the result

What do you think? Any recommendations?

Each level comes off easily as well, second floor and roof.

Turning Creator houses into modulars is a fun challenge. Interesting roof and front facade plus a good backyard too. Now while I do like the small balcony on the side, the open gap under the archway makes an otherwise good model feel incomplete. The second floor appears a little taller than the first as well.

Took your advice OrcKing and shortened the second level, made some adjustments to the balcony as well. Not sure what to do with the archway being open like that, I guess it's a new open structure look, should be fine since it doesn't really rain in my LEGO city

Took your advice OrcKing and shortened the second level, made some adjustments to the balcony as well. Not sure what to do with the archway being open like that, I guess it's a new open structure look, should be fine since it doesn't really rain in my LEGO city

Nailed it. :ok:

Nailed it.

Thanks!

 

31024 Wildcat by Peteris Sprogis

70163 Toxic Stinger by LegoScarz

70163 Toxic Stinger by LegoScarz

That is awesome!

JK BRICKWORKS

10236 UCS Ent

60004 Construction Site

31019 Steampunk Walker

75002 Research Colony

6866 Wolfsbane Robot

Too many from this builder to list but thankfully he has them in a Flickr album meaning I can post this easy to browse slideshow.

 

http://www.flickr.com/photos/57236294@N03/sets/72157625918657874/

Creator Alternative by Peter deYeule

Very talented bunch of people.