The three finalists from our DIY Eco-Tech Contest were nothing short of impressive. Now, we want to know which entry you thought was the creme de la creme. Before you decide, make sure to visit (or revisit) each of the finalist's entries. The first finalist was a solar-powered hydrofoil submitted by reader Terrence Breitsameter. Rob Matthies submitted his solar-powered bubble machine . Last, but not least, was a solar-powered FM transmitter/headphone combo by reader Ben Jandrell. Make sure to vote below for your favorite DIY eco-tech.