Hi Don

In my colleye, we have a "youyou" competition (youyou is a french slang word for dinghy)
The rules are simple:
100$ total cost including taxes (and it is in canadian $, once you remove the taxes and convert it to USD it about 58$)
4 hours build time
Only had tools
Does 50% of the race wind powered and 50% human powered

It is always alot of fun, some of the design are very funny and other are a bit more researched.

Here was our entry


The boat was built with frames cutted in insulation boards with strigners in spruce 1"X2" and covered with plastic. The Chute was shaped with packing tape and they were no stays but we used spruce 1"x2" to hold the mast (2"X3") up.

The foam frames were actually computer design. The shape of the hull was drafted with a 3d hull cap program.

The boat did well (we won the competition) but the wind was way too light and the chute did collapse a few times.

I was wearing my favorite hawaien shirt that day.