Bottle Launcher

Congratulations to graciepuppy, 7, whose design got the most votes in our Top Builder: Bottle Launcher Challenge! Here's what they have to say about it:

this is a marble cannon.(I made this with my dad's help)OK! (this is how it starts)first you put the marbles in the plastic bottle cannon.then the marbles will roll into a tiny hall-way and will roll out of the other door.then the marble will roll into the cardborad tunnel and then it will roll to the goal!

The Runners Up

  • corps11, 13

  • lukee4, 9

  • brooke0518, 9

  • RMuslimah, 14