Some friends asked me to help create a soap box racer for the [Portland Adult Soapbox Derby](http:www.soapboxracer.com). They would handle engineering the car if I would tackle the concept and crafting. It was a big project, but I’ve always wanted to do it, seeing as how the event is held in the park behind our house every year.
Old water tank liner, plywood, wire, tape and paint. In that order.