Drive-Thru Counterfeit Money Prank

Magician Rahat has a new magic trick where he somehow superimposes a picture of somebody on a one dollar bill. So Rahat took to the drive-thru to shock some employees. After receiving his change, he showed the person that they gave him a ‘counterfeit’ bill with their picture on it. Naturally, they were shocked. “How’d he do dat?” Good question. How did he do that??