I've seen variations on "Cat Litter Cake." I've even "threatened" to make it for Neil a few times. Perhaps for a Hallowe'en party? (But I'd want to clear it with the hostess first...)

*hugs* Love and Light to you! If I can help, just holler.

ETA: I'll see if I can find the link to another variant..that one, if I recall, uses pudding. (Eww.)