I'm not a (skilled) designer, but I think this contest is a great idea, so I'll contribute to the prize list.
How about a $100 shopping spree in the TeraBabes.com <a href="http://www.terababes.com/videos.htm">Video Store</a>?
Whoever wins the prize can spend as much as they like and I'll reimburse them for up to $100... ie, spend $94, get reimbursed $94. Spend $123, get reimbursed $100.
BTW - Have you figured out how you are going to group/rank the prizes yet? Just curious, since the list is getting fairly long, and some prizes may be more valueable to some people than to others...