Crush the Oreo cookies to form fine crumbs using a food processor or by placing them in a plastic bag and crushing them.

Combine the crushed Oreos with softened cream cheese in a large mixing bowl and blend until fully incorporated.

Scoop a tablespoon of the mixture and roll it into a ball, placing each on a baking sheet lined with parchment paper.

Chill the formed Oreo balls in the refrigerator for at least 20 minutes to firm them up.

Melt the candy melts or white chocolate chips in a microwave-safe bowl, stirring every 30 seconds until smooth.

Dip each chilled Oreo ball into the melted chocolate using a fork, allowing excess chocolate to drip off.

Add decorations while the chocolate is still wet, using candy eyes, sprinkles, or mini chocolate chips.

Allow the chocolate coating to harden at room temperature or refrigerate for 10-15 minutes to speed up the process.