This will be a work in progress for a while. I just found some sour beer in Shenzhen so I am not in a proper state to think clearly. Also, I like to think that the things I engineer are necessary..
  1. Hacky-sack shooter. I don't remember why this project was for, but I remember I used an air bringer motor and a huge paddle wheel to launch a hacky sack at incredibly (unsafe) speeds.
  2. An automated golf ball miter. One bench grinder and a chipping wedge later I was comparing several golf balls for distance and altitude. Never mind that it was for my brother's 8th grade science fair. And I was 26.