Crush the Oreo cookies into fine crumbs using a food processor or a sealed plastic bag.

In a large mixing bowl, combine the crushed Oreos with softened cream cheese and blend until smooth.

Scoop out tablespoon-sized portions of the dough and roll them into 1-inch balls, placing them on a parchment-lined baking sheet.

Place the baking sheet in the freezer for at least 20-30 minutes to firm up the balls.

Melt the candy melts or white chocolate chips in microwave-safe bowls in 30-second intervals until smooth.

Dip each chilled Oreo ball into the melted coating, tap to remove excess, and add decorations immediately.

Allow the dipped and decorated Oreo balls to sit at room temperature until the coating hardens.