vanilla creme-filled chocolate sandwich cookies, crushed (about 1-1/2 cups)
Assorted decorations: 3 oblong vanilla creme-filled sandwich cookies, decorating gel, 5 candy pumpkins, 10 candy corn pieces
Beat pudding mixes and milk in large bowl with whisk 2 min. Let stand 5 min. Stir in 3 cups COOL WHIP and half the cookie crumbs. Spread into 13x9-inch dish; sprinkle with remaining crumbs.
Refrigerate 1 hour. Meanwhile, decorate sandwich cookies with decorating gel to resemble tombstones.
Insert decorated cookies into top of dessert just before serving. Add candies. Drop large spoonfuls of remaining COOL WHIP onto dessert to resemble ghosts.