Make antennae in advance by cutting licorice string into 2 1/2 inch pieces. Attach Hearts Remembered Icing Decorations at one end of licorice pieces with buttercream icing. Let antennae dry overnight.
Bake cupcakes in Hearts Standard Baking Cups or any Valentine Themed Baking Cup, and cool completely on Cooling Grid.
Prepare Buttercream Icing recipe. Tint half the icing with Rose Icing Color. Ice cupcakes smooth with Spatula.
For mouth, tint some icing with Black Icing Color. Use Round Decorating Tip 3 to pipe outline of mouth, filling in with a zigzag motion. Smooth the icing with a finger dipped in cornstarch. Pipe two large dots with Round Decorating Tip 5 on corners of mouth with pink icing to create cheeks.
For nose and tongue, tint a small amount of icing red with Red-Red and Christmas Red icing Color. Use Round Decorating Tip 5 to create tongue and nose.
For eyes, use Round Decorating Tip 5 and white icing to create whites, and Round Decorating Tip 3 and black icing to create pupils.
To finish cupcake, insert 2 dried antennae into top of cupcakes.