Crush the Oreo cookies (without any filling) in a zipped bag.
Spoon the crushed cookie crumbs on top of each pudding cup to create a layer of "dirt".
Grab the milano cookie and the edible black writing gel. Write "RIP" or whatever you'd like to create an edible tombstone, than insert the cookie into the pudding cup.
Layer in ghost peeps, candy pumpkins, and gummy worms to create your idea Halloween dirt cup. Enjoy!
Notes
Tip: flavor is best when pudding is chilled, so either chill the pudding cups before assembling, or chill after for no more than 30-60 minutes.