Cover popsicle sticks with washi tape.
Wash and dry apples. Remove stems and insert sticks.
Melt white chocolate and oil/shortening in microwave. Stir every 20-30 seconds. Heat until almost smooth (about 1 minute) then stir vigorously until all chocolate is melted.(You’ll want to use a dish or cup that is not much wider than your apples and deep enough to fully submerge the apple.)
Let melted chocolate cool for 2-3 minutes.
Dip and allow the excess to drip off.
Transfer to plate covered with wax paper. Immediately transfer apples to refrigerator. (To prevent chocolate puddles at base, spin apples after refrigerating for 2-3 minutes. This will remove the excess chocolate at bottom.)
Once chocolate has fully cooled (5-10 minutes) dip in melted chocolate one more time, repeating process.
After second chocolate coating has fully cooled, begin painting the Jack Skellington face.
Use a fine tip brush for painting.