Line a cookie sheet with wax or parchment paper and set aside.
In a medium microwave-safe bowl, microwave the yellow chocolate melts for 45 seconds. Remove from microwave and stir. Continue to microwave in 10 second increments until melted and smooth.
Fill each cookie mold with 2 tablespoons of the melted yellow chocolate.
Chill the candy melts until hardened.
Remove tray from refrigerator.
Put a small dollop of melted yellow candy melts in the center of the hardened candy melt. (You may need to remelt your previous batch of candy melts).
Place an Oreo cookie on top of the dollop hardened candy melt. Then spoon additional melted candy melt over the Oreos, up to the top of each mold.
Chill for 30 minutes to allow the chocolate to harden.
Once chilled, gently pop each cookie out of the mold and place on the lined cookie sheet.
With the red decorator icing, pipe 2 hearts for the eyes of each emoji cookie.
With the black decorator icing, pipe a smile on each cookie.
ENJOY!!
Notes
Store in a single layer, in an airtight container for up to 2 weeks.