What is likely the world's largest kilt is now on display in Tulsa, OK, worn by the "Golden Driller."
You can read a full report about it here.
The one major "oops!" in the article is about the identification of the tartan. The report identifies it as, "The Black Hawk tartan, the plaid representing a highland military regiment that is more than 3,000 years old."
Change "Black Hawk" to "Black Watch" and change "more than 3,000" to "not quite 300" and you've got a winner. :-)