Would make a nice tattoo.
Maybe you could get a to-scale anatomical diagram tattooed on.
The S
One letter tag. Like the mark of Zorro, but backwards.
Stone Grain
Gas Bottle Graphics
Arabic Taxi Sign
Luggage Labels
Welcome Apt. Owners
Red Fins
Boites Aux Lettres
Caffe Siena
Orthopedic Brace
Erasmus Bridge
In Rotterdam.