My Encyclopedia of Unusual Sexual Practices states:
"The fetish may be partial (such as breasts, feet, hair, buttocks) or intimate (such as shoes, fur, latex, hats, gloves, panties, used condoms...). The fetish can be sense specific... Fetishes tend to involve objects which give a feeling of nurturance. For example, it would be unusual to find a spider or scorpion fetish.
"The selection of a fetish involves conditioning or learned behaviour and requires a strong stimulus for it to register. Conditioning occurs from infancy to preschool and again during puberty when a child's sex drive emerges for a second time."
And then it lists and goes into a wide variety of... stuff...