Grab a piece of parchment paper, a pen or marker, and an Oreo cookie. Use the Oreo to trace circles on the parchment, spacing them about 3-4 inches apart. (Discard the cookie afterward if it touched the ink.)
With the pen, draw eight crab legs extending from each circle, and add two claws to the front legs.
Flip the parchment paper over and place it on a baking tray.
Pour ½ cup of red candy wafers into a piping bag and twist it shut. Microwave on a low or defrost setting, heating in 30-second intervals until fully melted and smooth. Gently massage the bag between intervals to ensure even melting. Let the bag cool for 3-5 minutes until it’s cool to the touch before using. This step is crucial—if the candy is too hot, it will flow out too quickly when piping. Cut a small opening at the tip of the piping bag, then trace the crab legs and claws on the prepared parchment paper. Set the parchment aside.
In a microwave-safe bowl, melt the remaining red candy wafers using the same low or defrost setting, stirring every 30 seconds until smooth.
Using a fork, place an Oreo cookie on top and dip it completely into the melted candy. Lift it out, tapping the fork against the bowl’s edge to remove any excess coating.
Carefully transfer the dipped Oreo onto the piped crab legs. Repeat this process with a few more Oreos, working in small batches for best results.
While the coating is still wet, sprinkle the Oreos with your chosen sprinkles, leaving space at the front for the eyes.
Add the candy eyeballs near the claws. You can either stand the eyes upright (using sprinkles behind them for support as they set) or lay them flat.
Allow the cookies to set completely before serving. For quicker results, refrigerate them for 15-30 minutes until firm.
If you have leftover uncoated Golden Oreos, blend them in a blender or pulse them in a food processor to create edible sand! For a less sticky texture, consider removing the cream filling from at least half of the Oreos before blending.