b.j. tournaments

I am currently running a b.j. tournament for the casino i work for .
the problem is that i need a new twist because the tourney i'm running now is getting boring for the players. I need to get them started on something NEW! can you give me any ideas on a new format?
At present the format is as such.One 40 minute time limit where we moved to the next round the two highest chip holders...one four deck
shoe and 3 more are elimenated, and the final nine are now in the money..Ineed help now.thanks

Smitty