My friends birthday is Thurs. and I'm making a kitty litter cake for her! I had a question about the "white sandwich cookies"...are these the ones with the vanilla gunk in the middle (like Oreos)? If so, how many do I use? I bought a package with two rows of white cookies, and a row of mock Oreos. It's like 2LBS in all. My question is (if these are the right ones) how many cookies do I crumble in a food processor? I finally found a store that carries the full sized Tootsie Rolls after a long search. I have the tiny ones, but thought the huge ones would be more...ummm..appealing..as her cats are all huge! LOL! I can't wait to see how this comes out, and to see her reaction!