Prepare a baking sheet by lining it with parchment paper.
Lay the pretzel rings flat on top of the baking sheet.
Place the candy melts into a microwave-safe dish. Microwave for 30 seconds, stir, then continue to microwave in 15-second intervals until melted.
Once the candy melts have melted, transfer them to a piping bag or a sandwich bag. Snip the tip of the piping bag, then pipe enough green candy to melt into each pretzel ring to fill the centers.
Place a red heart sprinkle in the middle of about half of the candy-filled pretzel rings, and sprinkle the remaining rings with Christmas-themed sprinkles.
Let the pretzel centers harden on the counter, refrigerator, or freezer for about an hour.
Enjoy! Store in an airtight container.