Worst stop-motion/claymation in a movie

[akiratubo]

Probably the extremely jarring claymation shot of Godzilla kicking King Kong down the cliff in King Kong vs. Godzilla.  It lasts maybe one second at most, yet is so jarring and so bad it will probably be the thing you remember most clearly about the whole film.  As I understand, Eiji Tsuburaya was commanded to use stop motion by the Toho bosses but was not given enough time nor money to do the work.  So, he produced a couple of horrible claymation shots (which remained in the movie against his protests), thus horrifying Toho into allowing him to use men in suits, as he wanted.