I honestly thought Zeke would be too old for this activity. But boy oh boy was I wrong. He has played with this for hours on end this week, and best yet, his little brother can do it too.
It's as simple and simple gets. Cut a slit in the top of some sort of old container. Wipes boxes and oatmeal tins work great. Find some circular objects to place in the slit. We used poker chips, but when I've made these in the past I've used the metal tops of frozen juice packages and, you guessed it, quarters.