I took this on my phone. I was so excited he'd figured it out that my words got a little tongue-tied. This was a couple weeks ago. He is riding like a pro now. No help. So fast. Pete has, as you can see, upgraded from the tricycle to the bike with training wheels, which we borrowed from some neighbor friends. He'll probably be riding by the end of the summer.
This contraption was originally a marshmallow gun made by Grandpa Jerry. They have since been taken apart and fashioned into all sorts of guns and...didgeridoo-like instruments. Turn up your volume.