One was whether gross the other worth a smile, almost a giggle.
Actually the first one was intended to be humorous I think also.
It was a cover of a book entitled "Night Of The Living Trekkies". It showed a zombie dressed in a TOS costume--blue shirt. He carried a bloody arm with a hand in the Vulcan salute.
The other pic was on a calendar titled "Humorous Faces", I think. It showed a dog with a long muzzle and tall narrow ears that stuck straight up. He was dressed in a blue TOS shirt and had what looked like short black hair combed just right between the ears.