Is it immoral, unethical, or illegal to use movie prop money for collection plates, tip jars, beggars, and strip clubs?

If I’m paying for my goods and services with actual money, but using prop money for tips, is that bad? In my understanding, tips are given of one’s own free will and would be considered a gift to the recipient, the same as if I gave flowers or cookies as a tip. I’ve also seen fake money passed off by religious people that...