pneumatic straw rockets

thingiverse

This object was crafted using Tinkercad; access it online at https://tinkercad.com/things/h8VBT82HsZW. Although the idea of a rocket-shooting straw may be debatable, after being hit by spitballs from my son multiple times, I thought it would be fun to print one. While safety concerns such as eye injuries apply, these rockets are not sharp. To avoid inhalation, use a bendy straw with a right angle bend. The length ensures that the rocket cannot be sucked around the bend. Printing without a raft and using acetone/abs glue on the platform works well; size makes fill unimportant as they're mostly solid anyway.