LOL - Arnt, I thought you were cooler than that!
Well there are places that can make a 500E baseball cap for you:
http://www.captaincaptastic.co.uk/Bespo ... -c-12.html
But personally I'd want a pair of bespoke 500E underwear. These guys can do them in Egyptian Cotton:
http://www.turnbullandasser.com/turnbul ... spoke.html
Okay I've got it, a wallet made out of w124 sportline/ltd seats out of a 500E, with wood veneer backbone and embossed '500E' with a little 925 silver merc star in the corner.