Homeless do the opposite of the musician really, throw a coin/bill into their glass and they will take it out and save it somewhere else.
"Nobody has donated, have some compassion" works for some.
"Nobody has donated, have some compassion" works for some.
Panhandlers are common targets of theft, which may explain stashing most of what they get in various places less exposed.
Disclaimer: Canadian, we abolished pennies because they are worthless and a pain in the ass. ;)