Grind Oreo cookies (filling included) in a food processor until they reach a fine crumb texture.

Combine cream cheese and Oreo cookie crumbs in the bowl of a stand mixer fitted with the paddle attachment and mix until well-combined. The mixture should resemble a ball of chocolate dough. 

Roll mixture into 1.5" balls, place on a cookie sheet lined with parchment or a non-stick baking mat, and chill for 30 minutes.

Coat each truffle ball in melted chocolate, place back on the cookie sheet and immediately sprinkle with a pinch of coloured sprinkles. 

Chill coated truffles ball in the fridge until fully set, then transfer to mini paper cupcake liners on your choice of serving dish.