Kizmet... I have been known to wear anything from my Elvis Presley "TCB" pin, to my Sinn Fein badges, to my House of Blues enameled guitar pin, to a simple silver kilt pin for the job.

There was a discussion on this once... about how some guys accessorize their whole look with such things. As long as the pin keeps the apron from flopping around in the breeze, it's doing the job!