Lay miniature Reese's cups on a parchment-covered surface and coat with edible gold spray. Apply a second coat if needed. Set aside to dry.
Pulse Oreo cookies in a food processor until finely crumbed.
Mix Oreo crumbs and cream cheese together until well combined. Place mixture in the refrigerator for 10-15 minutes.
Scoop into 1-inch balls then place on a lined baking sheet. Refrigerate for 15 minutes or until firm.
Melt wafers according to package directions. If making multiple colored ornament balls, use one color at a time.
Dip oreo cookie truffles in melted chocolate; shake off excess. Place on lined baking sheet then immediately add gold Reese's topper and sprinkles.
Refrigerate until ready to serve.