Line a baking sheet with parchment paper or silpat and set aside.
Wash the apples and dry well. Cut the apples into almost 0.5-0.6 inch (1.25-1.50 cm) thick slices. Don’t cut thinner than ½ inch (1.25 cm) as it may be hard to insert the sticks in the next step.
Place the apple slices on a paper towel to let them dry as much as they can. Make a small slit to the bottom of the slices so you can insert the wooden sticks easily.
Melt the chocolate over bain-marie. Place a medium saucepan(that is large enough to hold a heatproof bowl) with almost 1.2 to 2 inches (3 to 5cm) of water over med-high heat and bring to a simmer. When it simmers, reduce the heat to medium and place the heatproof bowl that is full of chopped semi-sweet chocolate over the saucepan and stir with a spoon/spatula. Make sure the bowl doesn’t touch the simmering water. If it does you should reduce the water amount.
Dip the apples into the melted chocolate and place on a parchment covered baking sheet. Once apples dipped into chocolate, chocolate should reach the meeting point of the apples and the sticks. So chocolate can work as a glue. In the beginning, you can dip some of the apple slices into chocolate completely but as you continue, there will be a small amount of chocolate in the bowl. At this point, first, dip half of the apple slices and then spread the chocolate with a knife. Place the chocolate covered apple slices into the fridge to let the chocolate set for almost 20 minutes.
Start to melt the white chocolate over bain-marie as the chocolate covered apples start to set in the fridge. Place the melted chocolate into a piping or a ziplock bag. Let the white chocolate be in a pipeable consistency. When ready, cut a small piece from the edge. If you don't want a Halloween design, simply drizzle the melted white chocolate over the apples. For a Halloween design pipe small circles to make the eyes. Put the chocolate chips over the white circles. Drizzle the white chocolate to give a mummy shape without drizzling to the eye section.
Keep in the fridge until ready to serve.