Melt chocolate in double boiler over medium heat on stove top. Using tongs, or your fingers, quickly dip pretzels in chocolate allowing the excess to run off.
Place dipped pretzels on waxed paper lined cookie sheets. Sprinkle with chopped nuts, colored sugars or other toppings. Allow to harden. You can refrigerate them for 20 minutes to speed this process up.
Once hardened, remove from sheets and store in a cool location, with waxed paper between layers.