We do this at our house! My kiddos and their friends love it at snack time. We usually fill up the tray with nuts (if there are no under-3s around), cheese cubes, Cheddar bunnies, and assorted dried fruit. If I have anything like M&Ms or jellybeans in the house, I'll put some in one compartment as a special treat. The kids always eat them first, but then they make short work of the healthier stuff right after.

My son and I do this on Friday nights with a 12 count muffin pan. I fill it with cherry tomatoes, tofu chunks, cheese cubes - anything that makes up a good nutritional mix for dinner and can be speared with a toothpick (somehow everything is more fun to eat that way). Then we sit on a blanket, eat and watch a movie. My son calls it "picnic in the livingroom". He loves it.

I would be careful with what kind of tins you use. Metal utensils and teflon coated tins aren't very good mix.