Thank you for sharing. It was a creative project and looked like fun!
Now a mini crawler course can be a bit easier, because everything is an obstacle.
I used to live in Connecticut as a kid and we had huge basements. We used to shoot our BB guns down there, had a BB trap at the end to of it, safely located right by the door to the garage. Luckily (wisely) we always stopped shooting when my father drove into the garage. That would have been the...