The ASME (the breeding ground for guys who make vehicles near impossible to remove a spark plug from without pulling the engine)
seem to like the drill-powered bike.
JoshBuilds made a drill bike out of PVC.
I thought this was a bad idea given drill bearings and the internal cooling aren't meant for that sort of use...then realized drills are "almost free" in kits as the replacement batteries are what manufacturers are interested in selling, especially on hardware holiday.
And it's not the only type of
idea along those lines.
Notes:
1: "Water balloon bumpers" may not have lasted, but "foam backed bumpers" are in many modern vehicles under plastic bumpers.
2: Wrist-twist looks like Tesla's system, somewhat.