Fetish Acts
Whilst participating on an adult forum recently, I discovered that there was a fetish for people who liked to lick eyeballs. It is known as Oculolinctus. I managed to find a few more strange activities that some would probably find gross:

Odontophilia: Tooth fetish.

Iantronudia: Exposing yourself to the doc gets you going.

Eproctolagnia: A fetish for passing wind.

Axillism: Sex with your partner's armpit.

Acrotomophillia: Amputees give you the horn.

Agalmatophilia: A thing for shop dummies and mannequins.