Trev did most of the work himself and had a really fun time doing it. I was glad he likes building them so much because there is no guarantee of how well they will perform. This experience turned out much better than the pinewood derby (his pinewood derby car came in close to last place although you wouldn't know it, he was just so excited to build the car and get to race it) and his boat came in first and he had the fastest times out of all the boats raced that day. Most importantly, he had a BLAST doing it.
Way to go Trev!