Oh bugger...apparently it's already been invented I kid you not!!

Type of Fetish Estimated Percentage of People Estimated Number of People Worldwide

BDSM related 5.601% 336,000,000 (336 Million)
Foot 1.1391% 68,300,000 (68.3 Million)
WAM 0.3877% 23,000,000 (23.0 Million)
Smoking 0.3782% 22,700,000 (22.7 Million)
Armpit 0.065% 3,900,000 (3.9 Million)
Amputee 0.0184% 1,100,000 (1.1 Million)
Sneezing 0.0169% 1,000,000 (1.0 Million)