ToyBuilderLabs is sponsoring a contest for this month over on Reddit that ends March 1st. First place is a $100 voucher for their store, second and third are $50. Looks like the only thing they really sell is filament, but hey - contests are fun!
Cool thing is the contest also requires that you provide a link, or a downloadable file for the object - so no closed source printing.
http://www.reddit.com/r/3Dprinting/comments/1xcnue/toybuilderlabs_february_contest