First, you need a kitty litter pan, a plastic liner and a pooper scooper. Most recipes tell you to use a new pan and scoop that's never been used before (for the purpose that it is intended). 1 German chocolate cake mix 1 white cake mix 1 or 2 large packages of vanilla instant pudding mix, prepared. Some people think two pudding packages are too many. It's a matter of preference. 1 large package of vanilla sandwich cookies green food coloring, optional 12 small Tootsie Rolls. Bake the two cake mixes according to package directions. Cool. Prepare the pudding mix or mixes. Crumble up the sandwich cookies. Its easier with a good food processor like the KitchenAid? 12-Cup Food Processor. take 1/4 cup of the crumbled cookies and add the green food coloring. Mix the coloring in well. This represents the green chlorophyl that you find in some litter Omit this step if desired. Crumble the cooled cakes into a large bowl. Add half of the remaining cookie crumbs. Mix in the pudding, adding just enough to moisten. You don't want it to be soo soggy. Place this mixture in the lined litter pan. Soften 6 Tootsie Rolls in the microwave. It's best to do three at a time. Just soften them enough that they are pliable. Gently shape these tootsie rolls to resemble.... well, use your imagination or refer to the picture. Place these rolls in the cake mixture. Sprinkle some but not all of the remaining white cookie crumbs over top of it all. Then sprinkle green cookie crumbs on top of the white ones. Soften another 3 Tootsie rolls until they are almost melted. Scrape the almost melted chocolate on top of the cake. Sprinkle with more crumbs. Soften the last three rolls until almost melted. Scrape two over the top of the cake mixture, and drop the third so it hangs over the side of the pan, Sprinkle with some more crumbs. Now if you want to be truly disgusting -- and why not? After all, if you've gone this far, why stop now? For the final presentation, place your litter pan on a newspaper. Sprinkle the remaining crumbs around on the newspaper. Put the scoop in the pan and use it to serve these gross Halloween cakes.