I don't do the "taken" thing but I thought it would be cute if they released a "Not Taken" pin for Valentine's Day. "Not Taken" pins would become "Taken" pins when you traded them with another player. Trade them back when you break up to be "Not Taken" again.
Then those of us who don't play that game can forego wearing the pin at all and no one will ever have to ask "U taken?" ever again.