Tuna Can

This is a model of a tuna can. I used it for a tennis ball launcher pioneering structure. I included a version with holes and without holes. I didn't have any tuna cans but I had TPU and a 3d printer. 

Here is an article on the launcher we were creating. https://scoutpioneering.com/2015/05/17/scout-meeting-challenge-new-market-ballista/

I used elastic paracord for the stretchy material.