I'd like to prove, verifiably, to some contestants in a contest I'm setting up; that I'm on the level and I do indeed have a prize ready to give to the winner.
I'm not talking escrow, I don't know who specifically is taking the money yet, they haven't contested yet and it doesn't start for another 9 weeks.
So, I'm trying to offer a cash prize, and to show off the bling on flyers and stuff.
I can't write "Grand Prize 0.0005 BTC" because that looks fucking lame, right?
What can be put on the poster to really get people's juices flowing?