Bento Lunch Boxes - Healthy Lunch Ideas for Kids - these would probably work in muffin tins also. Mostly good for toddlers, and my boys are probably too old finicky to appreciate them, but this pin has about 20 really cute ideas.
I liked this until I saw they grilled them! Poor little bell pepper frogs :( Here's the pinner's caption: "GRILLED PEPPER FROGS: How cool is this idea? We've also found a little video of a young child making one of these frogs, via Kids Cook Monday.