Man I would like to see that!!!!! I have been using an electric Minn Kota for many, many years (started off with it on a donut tube). There is no way in H*^$^ I would try to hold it!
I do license my tube/toons. No big deal really and the DMV is getting much better at taking care of you.
Paddle Pushers move you very little and really aren't worth it. They are designed to move you forward, but very little at that. I recently got Scuba fins (Omega flip). I find if I slightly lean back, and extend my legs, by fluttering my feet like a swimmer, I move. And not on just the up stroke but both up and down. You really don't need to add a lot of leg movement.