User blog comment:PurplePenguin/The Grunkle Stan Mystery/@comment-207.35.255.194-20130418020048/@comment-174.24.82.121-20130418233156

Yah, when Mabel starts to relize how hard it is to run the shack, she helps someone by flattening their money to put it in the machine. She actually puts the dollar in and types in a code.