Based on the I Spy video game, write a clue about items for your kids to find. For example, "I spy a burger, an apple, a beet. Find the 12 items that you can eat." And then have 12 items from the play kitchen hidden around the room. I've used matchbox cars, dinosaurs and easter eggs but anything works. You can make this a learning game by adding a math component or a logic game by adding a category component.