I think that it can be a good idea to open a bounty for competition like the Ludum Dare
( this is just an example )
Competition Rules and Eligibility
1) You must work alone (solo).
2) All game code and content must be created within the 48 hours.
3) Games must support Bitcoin currency
4) All publicly available libraries and middleware are allowed.
5) All content creation, and development tools are allowed. (3dsmax, Photoshop, Flash, etc)
6) Source code must be included.