Begin by placing the Oreo cookies in a food processor. Pulse until they form fine crumbs resembling sand, about 30 seconds.

In a mixing bowl, combine the finely crumbled Oreos with softened cream cheese. Blend until smooth and well incorporated, about 2-3 minutes.

Portion out the mixture into 1-inch balls and place onto a parchment-lined baking sheet. Chill in the refrigerator for approximately 15 minutes.

Remove the cookie balls from the refrigerator. Using a toothpick, gently score lines around each ball to create a pumpkin design, then chill for another 10 minutes.

Melt the orange candy melts according to package instructions until smooth.

Dip each chilled pumpkin-shaped ball into the melted orange chocolate, allowing excess chocolate to drip off before placing back onto the lined baking sheet.

Insert a small piece of pretzel stick into the top of each ball for the pumpkin stem and add a green leaf decoration. Refrigerate until ready to serve.