Poster Coaster

Congratulations to kneilson, 12, whose design got the most votes in our Top Builder: Poster Coaster Challenge! Here's what they have to say about it:

My poster coaster has two paths that wrap around rolled up poster boards. The actual track is made of poster board with some duck tape on it. Both paths were able to get the marble in the cup.

The Runners Up

  • raisingaz5, 8

  • legofan2010, 12

  • TARS, 10

  • smsscience, 11