Fetich

noun

1. Something which is believed to possess, contain, or cause spiritual or magical powers; an amulet or a talisman.
2. Sexual attraction to or arousal at something sexual or nonsexual, such as an object or a part of the body.

   "I know a guy who has a foot fetish."

3. An irrational, or abnormal fixation or preoccupation; an obsession.

   "a fetish for deficit reduction"