In a double boiler, melt the chocolate chips or candy coating over low heat, stirring constantly until smooth.
Line cookie sheets with waxed paper. Using a fork to poke through the “sandwich” middle, dip the entire top and side of each cookie into the coating, letting the excess drip off. Lay the cookies flat, coated side up, on the cookie sheets.
Place two chocolate chips in the coating to form eyes. Or, melt the chocolate chips and use a decorator’s bottle or zip bag to decorate eyes, bow ties, etc.
Let the cookies stand for about 10 minutes until set.
For a nut-free version, make your own cookies using sunflower butter instead of peanut butter.