After studying the interior of Kramer's apartment shown in some of the later episodes, I made a horrible discovery: the pasta figures standing on a rack (Fusilli Jerry, Macaroni Midler and possibly Ravioli George if that idea ever materialized). Correct me if I'm wrong, but wasn't it the Fusilli Jerry that penetrated Frank Costanza as he sat down on it and caused him to go see the proctologist? If so, what is it doing in Kramer's apartment (did he ask the proctoligist (Assman) for it after the operation?) and why would Kramer ever want it back after it's little voyage? I know for sure that Jerry wouldn't! Maybe this is why we never see Jerry in Kramer's apartment?!?!!
Of course, there's the possibility that Kramer has constructed a new Fusilli Jerry (on his spare time) ...