Two things that come to mind...
a few of us would go to the library and make photocopies of dollar bills.
We would put them in the turnstiles at the path train in Journal Square..it was 45 cents at the time so 55 change cent would pop out...I think they call that counterfeiting now.
We would pay for dozens upon dozens of people to ride the train... and go eat with our bounties..
We would also take the path train into NYC to go buy fireworks in Chinatown to sell for the 4th of July which in itself isn’t too bad but when ya think now that we were coming home with multiple