Makes 2 dozen.
Stir drops of food coloring into the frosting until you have a shade of watery blue. Frost the cupcakes.
For each cupcake, create a pair of frog eyes by slicing a gumdrop in half. Press a white chocolate-chip tip down into the cut surface of each gumdrop half, centering it near the bottom edge. Squirt a dab of black decorators’ icing onto each chip.
Set the frog eyes on the cupcakes, gently pressing them partway into the frosting to hold them in place.