Aight sucka's... need some ideas

I'm thinking about hooking up a few ER members throughout this year's race season. I'm down for "sponsoring" a few member's race entry fees, and even paying the way for a few members entry fees if you're just interested in watching instead. No definates on how many or how often but, I'm thinking I'll do it atleast a few times over the months.
Here's what I need ideas for. How could we make it a fair "game of chance" for who can win? I'm thinking like whoever makes the most
legitimate posts between two designated dates. No post whoring of course so if other members called you on it you lose

Maybe the newest member with the most posts by a certain date? Maybe we could have people post a few pics of their rides and other members could vote on who would represent ER the best down at the track, etc.
You guys tell me... you're the ones that can win, not me.
