Toss with half the remaining white cookie crumbs and the chilled pudding. You don't want it soggy. Line new, clean kitty litter box. Put mixture into litter box. Put three unwrapped Tootsie rolls in a microwave safe dish and heat until soft and pliable.
Shape ends so they are no longer blunt, curving slightly.
Repeat with 3 more Tootsie rolls and bury in mixture. Sprinkle the other half of cookie crumbs over top. Scatter the green cookie crumbs lightly over the top. Heat 3 Tootsie Rolls in the microwave until almost melted. Place the box on a newspaper and sprinkle a few of the cookie crumbs around.