More Builds

Portrait of Einstein

The Destroyer

Giant Build Contest

Guess how many K'NEX parts it took us to make this K'NEX Mantle and you could be a winner!

Your Guess:
Your Name:
Your Age:
Your E-Mail Address:
Parent's E-Mail Address:

We'll pick the 5 closest guesses to each receive a
K’NEX® MARIOKART Wii™ Track Expansion Pack™

See Official Contest Rules* | See Previous contest winners