Try rainbow foods if you hesitate which color your next delicious desserts should be. Use all bright colors. These 36 desserts are very pretty and yummy.
pinner says "Rainbow Swirl: paint food coloring inside bag, then fill with icing. It will "stripe" the icing as it squeezes out - try it in any color combo!" (not sure if this will work with my luck it will turn out all brown and icky)