Low minimum BTC Gambling sites?

They all start the minimum bet size at .001 btc or .0001 btc. Im looking for a gambling website that has the lowest bet size at .0000001 or less. Low btc minimum betting sites around?. Anyone know any?

Or low minimum (.0000001 btc or less) btc Forex that accepts USA?

So far looks like primedice the only one.

Any info? Thanks!!