Lay your choice of pretzels in a large plate; set aside.
Squeeze decorating icing (your choice of color) into a microwave-safe cup. Note: Each character will require about 1 heaping teaspoon of icing. Microwave the decorating icing on high in 5 second intervals until the icing becomes semi-liquid.
Spoon the warm icing over each pretzel, using the back of the spoon to smooth out the frosting. While the frosting is still warm, place on the candy eyes.
Refrigerate until icing is firm, about 5 minutes.
Make the noses* using the Writing Icing, or pipe on the Decorating Icing.Using the Easy Writers or Writing Icing, draw on the mouths and other features.
*You can substitute jelly beans or other confections for noses. You can also use licorice strands for mouths.