Place the Oreo cookies into a large ziploc bag and use a rolling pin or meat tenderizer to crush them into a small crumb texture
Add the cookies and cream cheese to a large bowl (or bowl of a stand mixer) and beat on medium until well combined.
Add the mixture to the egg mold cavities, and press them in to form eggs in the mold.
Place mold with cookie mixture into the freezer for one hour.
Line a baking sheet with parchment paper. Remove the cookie eggs from the mold.
Melt the white candy in the microwave according to package directions. Microwave 30 seconds then stir and then 15 second intervals until melted.
Dip the cookie eggs into the melted candy to coat them. Use a spoon or candy ting to handle the eggs while dipping. Place them on parchment paper on the baking sheet. Freeze for 10 minutes to set.
Add each of the colors of candy melts to separate piping bags or ziploc bags, and heat in 20 second intervals in the microwave, until melted; massaging the candy in the bags between heating sessions.
Snip off the ends with scissors, and drizzle over the candy coated eggs in a back and forth motion, using two colors per egg. Top with sprinkles.