Hitoshi Ariga is looking to adapt fan-made robot designs to use as "extras" for future volumes of the Rockman Gigamix comic. As such, he's created a special Oekaki board where by fans can draw entries or upload existing designs for Ariga to review.
There are a few things to keep in mind before submitting your creation: these characters will end up being destroyed in some manner, and thus should not be overly complex, for their appearance in the comic will be a short one at best (one or two panels).
For the uninitiated, Oekaki boards are web browser based drawing programs. These plenty of them throughout the Mega Man community, the ones I'm for familiar with are The Mega Man Network and Rockman Perfect Memories.
Ariga's Oekaki (located here) requires you to enter in your name, a title and description of your creation. Of course, everything is in Japanese, so go at this at your own discretion...at least, until some generous soul provides a handy English tutorial.
Feel like participating? Draw and send your entry here.
Credit: The Mega Man Network