Urination Is Where We Draw the Line on Home Beauty ProductsS
You know what they say: Nothing takes the callouses off like
fastening plastic bags filled with urine around your feet.  The
Foot Pee! Pack, essentially two ziplock bags intended for your
feet, supports an age-old philosophy that one's pee can have
benefits to their skin. Now I'm no expert, but I've been
accidentally urinating on stuff for years now, and I can't say
that my crotch, toes, knees, backyard bushes or bathroom walls
look any younger because of it. [Toyko Times via Tokyo Mango]
Also note the products tagline: "Easy & Surprise"