My grandparents own a cottage on a bay up north and since I have decent car of my own now I'm going to be spending most of my weekends up there with them. My cousin, another mechanic, spends most of his weekends up there, too. I want to have a weekend project with him that would be kind of cool to bond over and I'm wondering if you guys have any suggestions. Obviously my first idea was a project car, like a dinky Astrovan or old pickup we could supe up with a cool paint job and sound system, but I wonder if there's anything else that might be fun.
Looking for a fun mechanical project for my weekends this summer - Suggestions?