I'm gonna be looking for backers to put me in live tournaments over the long haul. I think I'm a sure shot at >1000% roi without consideration to variance :P. Or you can just bet it on red, that works too. Oh, and there is always gold stock Gld is at $168 with a call option for $24 expiring 1/17/14. If you buy 400 calls at 10k and it hits $432 you made the gravy train. choochoo!

River Royale: did you get my PM?

results?

such a degen
go to the roulette wheel and bet 3 numbers. done.

there is a website that lets you make bets like this, but you have to use bitcoins
http://satoshidice.com/

they have a bet pretty close to 10x with a 1.5% house take:
10.709x
min bet .1 btc = $.52
max bet 30 btc = $156

Looks to me like you're looking for a large amount of leverage with the smallest vig possible.

Have you considered options trading? You can place a very large bet on options while paying a small amount of commission.

If you were clever/smart (note: this goes against your "easy" criterion), you would do some research, e.g. find a company that is likely to miss/exceed its next earnings announcement, so that you could go short/long on a highly leveraged options trade.

Sounds a lot easier than it is, but if you believe in the efficient market theory, you are at least at EV~0 with the smallest commission possible, in all likelihood. If you don't believe in the efficient market theory, well then do your ****ing homework, pick the right company and time it right.

This is (a vastly simplified version of) how the big boys gamble.

It doesn't matter whether or not you believe in efficient market theory -- you're not looking for public information.