Cream together butter, cream cheese and sugar and set aside.
Beat milk and pudding 2 minutes with mixer. Fold in Cool Whip. Combine with
cream cheese mixture.
Crush Oreo cookies in blender or food processor, a few at a
time until the consistency of dirt.
Use a clean flower pot to serve. (I bought a brand new new plastic one that looks
like clay, along with a new plastic trowel which I use for ONLY this purpose). Place
1/4 of cookie mixture in pot, then 1/3 of pudding mixture. Keep layering this until
you end with "dirt" on top. Refrigerate. Put a few silk flowers in center,
add some gummy worms "crawling" out of the pot!