Make them buy their own ice cream. See how much they throw away then.
Are you kidding as soon as they get green dollars they must buy the first thing they see...and it's never food.
lol
My 11yr old lost three teeth in three days..the tooth fairy actually forgot to come on the third day.....she is the only one that saves her money.
AND it drives me nuts that she still believes in a tooth fairy but I just don't have the heart to tell her yet.