Question kinda on the topic. We go as a family alot and my daughter is only 2 well will be 3 in september. She ends up wanting to take one of the toys alot and i have been caught with out any toys to leave but i always take some old change with me when i go out to leave (like a 1882 pennie, steel pennies that kind of change. Is that an ok exchange or are old coins like that not good cach stuff)?