as a conclusion to my other instructable im gonna tell you how to press those bills back into crisp dollar bills.
link is here: shirnk-a-bill
now if you crisp it it will not have the same look but the same touch which is all that matters in when you put it in a pop machine.
Step 1: Wet It
turn on that old sink you have (yes the one with the dishes) and wet your dollar bill with the water
Step 2: Press It
now take 2 heavy phonebooks and put the bill(s) beetween them
wait until dry
Step 3: VOILA!
there you have it you have now shrunk and unshrunk a dollar bill