If you found them online, and you're Scottish, you gotta get the T-shirt!
I have a cool pic of me wearing mine standing next to the guy who plays bagpipes in his full regalia on Union Square in San Francisco. There's a great Scottish shop on Union Square too.
Oh and here's how it looks when you get the opportunity to go on stage with Ginger of the Wildhearts!
http://www.youtube.com/watch?v=CqbEPBWx3po Michael Lee Smith
