Co2 Dragster

thingiverse

This is an explosive CO2 dragster that's a blast to build, especially when you're racing against someone else's car. To create this speed demon, all you'll need is a CO2 canister, a launcher that you can easily 3D print from the design available at thingiverse.com/thing:1466351, and a long flat surface or a track to put your skills to the test.