Over at SpaceBase8, the nifty webcomic drawn by my friend David Scott Smith, Wednesdays are Robot days. New strips are posted on Tuesdays and Thursdays, but every Wednesday, Dave posts a drawing of a robot- the great part is that he'll post your drawings too. Here's mine.
Send him one. Send iiiiiit! Or if robots aren't your thing, maybe you can draw a Raygun (he posts drawings of those on Mondays) or a Rocketship (posted on Fridays). You can email your submissions to firstname.lastname@example.org .