In bowl, with electric mixer on low, beat together all ingredients until combined, reserving 3 tablespoons water. Increase speed to high, and continue beating until stiff peaks form. Add reserved 3 tablespoons water to icing to thin it to the consistency of heavy cream. Divide icing among four bowls, and tint each bowl with food
coloring. Using fingertip, spread icing over cookies. Place colored candy
on some fish for eyes. Let cookies dry completely. To make colored circles, dip bottle cap into icing bowls and randomly dot tops of dried cookies.