Scarlett and KK both mentioned heart-shaped cupcakes as their favorite Valentine's treat. A little Googling brought me to FamilyFun.com (always a reliable source of easy kid fun), where I found directions on how to make these "cupid's cupcakes" without a fancy pan. The secret: a marble or an aluminum foil ball. Nice!
Then again, if you're pressed for time, there's always the trusty grocery store cupcake. Says Taryn:
Smooth the tops, add some sprinkles, put them on a pretty plate and send them to school!