The shape of an egg
Quivering, invisible
Hairless chimpanzee
Once upon a time at Poetry Central Headquarters: Phraseonomics
The Pumpkin House of Horrors
I didn't have a great inspiration that year and I've never been all that fond of this pumpkin. But the teeth are fun. The shape of the pumpkin suggested a severe underbite, which is perhaps easier to see in the thumbnail image.