1Remove the stems and place the cherries in a bowl. Toss with the rum (if using) and let sit for 20 minutes or up to overnight; drain.
2Place the next six ingredients in the bowl of a food processor. Process until the mixture comes together, there are no large pieces of almonds, and the texture is fairly smooth. Scoop a scant tablespoon of cookie dough and form into a ball. Flatten the ball in the palm of your hand and place a cherry on the dough. Mold the dough around the cherry, covering it completely and roll into a ball. Roll the ball in garnishes. (Make ahead: store in an airtight container in a single layer in a cool, dry place for up to 3 days. Store in the refrigerator for up to 5 days.)