[Slow Play Ray]

easy. when you are collecting entry fees, get an extra $X from each player and give them a unique chip (different from the tourney chips, that is - all bounty chips are the same as one another). when somebody busts out of the tournament, they have to give their bounty chip to whoever busted them out (just one - if they have busted other people out, they still get to keep those). at the end, or when they're leaving, everyone cashes whatever bounty chips they collected in with you for $X per chip.