In the silly simile department, Cheat Seeking Missiles has a collection of howlers written by high schoolers. A few samples:

5. She had a deep, throaty, genuine laugh, like that sound a dog makes just before it throws up.

20. The plan was simple, like my brother-in-law Phil. But unlike Phil, this plan just might work.

23. The ballerina rose gracefully en pointe and extended one slender leg behind her, like a dog at a fire hydrant.

If you need a fright rather than a laugh, Ace has the definitive photo of Democrat political consultant Susan Estrich. Don't be sipping anything when you click that link. Commenter Ray Midge notices a resemblance to another TV monster.