Thanks, MacMillan of Rathdown. I have a self-tie tartan tie coming (eventually) from Scotland House in Williamsburg VA. The nearest supplier of things Scottish (The Scotland Yard) had a four-in-hand tie of Armstrong Ancient on hand that is now mine as a fall-back position if the bow tie doesn't arrive in time for the intended event. They also had some Locharron kilt hose in the color I wanted, and a pair of plain Lovat blue flashes, so I have my backup plan in place.

On looking at flashes in tartan, I find the tartan is done on a smaller scale than what is used for neckwear, which in turn is on a smaller scale than used for a kilt, which is on a smaller scale (or appears to be) than what is used for scarves and blankets. I have an Armstrong Modern scarf, necktie (four-in-hand), and what remains of a shirt made for me when I was a bit lighter (that sadly has been attacked by moths in a time when I didn't realize I had a moth population problem). All weaves are done in different scales. For this reason, simply buying fabric would have been a bit tricky, although I didn't realize it when I started this thread. The tartan flashes I've seen advertised online, if they were in stock, would cost me nearly $50US--more than double what I am willing to pay. Unless I find them on special pricing somewhere, I'll deal with what I have.