Lightly dust a cutting board with powdered sugar.
Using your hands, knead the red fondant until it's soft and easy to mold.
Dip your paint brush in powdered sugar.
Place the Wilton silicone mat onto the cutting board and lightly dust the small bow mold with the brush.
Pinch off about 1 ½ teaspoons of red fondant and push it into the bow mold. Let it set for 5 minutes before carefully removing it.
Place the bow on the cutting board and make 11 more. Allow the bows to sit overnight.
Dust the cutting board again with powdered sugar.
Knead the black fondant until it's soft and easy to roll out.
Roll out the fondant to ¼-inch thickness and use the circle fondant cutter to cut out 24 circles. Set them aside to sit overnight.