If you don't have a mini muffin pan, you can make mini muffins with a little creativity. Purchase foil cupcake liners and set them on a baking pan. Foil liners are a lot more sturdy than paper cupcake liners, so they'll stand on their own and won't tip over as they're baking (which would really cause a mess). If you bake mini muffins in foil liners instead of in a mini muffin pan, you may have to adjust your baking time. Muffins will bake faster in foil liners than in a metal muffin pan.