Punch a Bunch, but once a slip is revealed, if the contestant has additional punched holes not revealed yet, have a 3rd option to “gamble.” If the “gamble” option is selected, the next hole punched is revealed: if it matches the 1st slip in dollar amount, the initial slip is multiplied by 10, and the contestant is given the option whether to gamble again, keep the money, or give both back and move on to the next hole. If it doesn’t match, the contestant earns nothing. (If there are additional punches earned, the contestant automatically moves on to the next hole. If they gambled and lost on their last hole punched, they lose the game.)
Aside from (in my opinion) making the game unnecessarily complicated, even for a one-off, there is the question of whether the highest value on the board (whatever that would be) would have multiple slips or the standard one.
In either scenario, however, the gamble has the potential to create bad television -- as one example, imagine a contestant gambles and the next hole contains a (or the) largest-value slip.