That is awesome! You've hit on the same things that for me I really didn't forsee but enjoy so much about 3D printing. Making stuff for family and friends, I'm thinking about doing a pistol from Destiny for a friend, and have found myself doing all kinds of projects or parts of projects for my kids school.
The schools here are pushing STEM hard, so I push the kids hard. I insist I will not just print 'stuff' and they call it a project. I'll print whatever they want as long as it is part of their project or they can describe it or explain how it fits into the bigger picture of STEM. It's been a great time this school year watching the creative minds at work.