I noticed one of the local Indian shops was doing a "Buster Blackjack" side bet. Optional side bet, if the dealer busts, you get paid. If it takes the dealer a lot of hands to bust, you get paid more. Max side bet is equal to main BJ bet.
When googling for it, I turned up this page in South Dakota:
I don't remember, but I think the pays table I saw was the H3 paytable.
a) Idea on house edge?
b) Idea of it's exploitable? I was thinking maybe it would be better in a negative