If I knew nothing about coins and got nuisance stuff I didn't want in my till, I'd re-circulate by giving it to a customer. say a $2 bill, give to somebody that gets $2.44 in change....I can't see too many people saying give me two singles instead. A half could easily be passed. mini dollar coins might be more rejected. I'd get that stuff out of my till if I don't like funky money. it should not be a problem if the customer is like over 50, old folks have seen halves and deuces before....they were certainly used like 40 years ago. Ike dollars should be easy to use. I can't believe my local coin dealer sends them to the bank.....As a lottery agent, I'd give them in change since you are a coin dealer anyway. mini dollars are tougher, nobody wants those things, dating back to the 1979 SBA....I'd take one in change without an argument, but many would balk at our American "Loonies"