Well, your child did it again. She volunteered you to make three dozen cupcakes (pink, heart-shaped, with sprinkles, please) for her class Valentine's Day party--tomorrow! And when does she spring this news? 9 p.m.--no time to go to the store. Here are super-fast, last-minute, homemade treat recipes made with on-hand ingredients. I've included DIY heart-shaped snacks and improvised frosting, sprinkles and decoration tips. Homemade Valentine's Day Treats Heart-Shaped Cupcakes, Cookies