Kids in the losing-teeth ages think golden dollars are cool, so you can save some dough by giving those. I used to get mine at the post office vending machines - they used them as standard change, so you could get a book of stamps, pay with a $20, and get 16 or so gold dollar coins (I don't know if post offices do that any more - the one by me removed its vending machine). It worked for all of my kids. UCLA is right; just make sure they all get the same thing. And, a dollar bill and a gold $1 coin are not the same thing to a six-year-old, at least not in my world.