Feet! I look at them all day long. Nothing sexual about feet to me. Seen dry ones, wet ones, fungal ones, gangrenous ones, clean ones, dirty ones, long toenails, short toenails, missing toenails, straight toes, hammertoes, broken toes, high arches, flat arches, bullet riddled feet, shark bitten feet, collapsed feet, crushed feet, burned feet.
I have a friend who's an OB/Gyn who has a foot fetish. Offered to change offices with him for a day, but he hasn't taken me up on the offer, yet, LOL.