PlugRush has launched a contest where their publishers can win up to $2500 in cash. They payout via Paypal, Paxum, Payoneer, Redpass and Wiretransfers so if you win, you can either spend the money on traffic or just have them payout.
The contest is simple, all you have to do is use their widget and submit it here. They will pick the 10 best widgets. So you should put some work into making them look good, style them using their advanced mode when creating the widget.