Have ready a place to stand up the apples once they are on the sticks and dipped, such as a sturdy block of Styrofoam or a shallow, sturdy cardboard box with holes punched in the lid. Have the candy eyes opened and in a small dish.
Place the Candy Melts in a medium heat-proof bowl (use separate bowls if you're using more than one color.) Microwave the Candy Melts in 30 second bursts, stirring each time, until the candy is completely melted and smooth. (It will be a little thick. Do not overheat it.)
Stick a treat stick into the bottom of an apple. Holding the apple by the stick, roll it through the melted Candy Melts until the top and sides are coated. Tap off the excess or use a small rubber spatula to smooth off the excess. While the candy is still wet stick on the candy eyeballs all over the apple. (Add in 1 or 2 larger eyeballs if you're using them.) When done, stand the apple up in the prepared Styrofoam block or the box. Continue to skewer, dip, and decorate the remaining apples. Allow them to dry completely - this should only take 10-15 minutes.
When the apples are all dry you can served them immediately. or gently wrap them in plastic wrap. Store them at room temperature for up to two days.