Megan Seling is the author of Bake it in a Cake -- a cook book that features creative ways to put a baked good inside another. Seling continues this theme with Bake it in a Cupcake: 50 Treats with a Surprise Inside. Below are some examples of Seiling's genius.
Strawberry Shortcake Cupcake with Strawberry Cream Cheese
Creme Brulee Cupcake
Chocolate Pudding Pie Hi-Hat Cupcake
Peach Filled Cupcakes
Pink Heart Cupcake