I've been intrigued by these garments for a while, and when invited along to the AZ Renaissance Fair I decided to try and "recreate" my 7th-great-grandfather as I imagine him.
So...got a terrific deal on four yards of brownish non-clan plaid, thick wool blend for $5 a yard.

My Bonnie Sweetheart helped pleat it.

I then performed the dignified ritual known as "Scottish Burrito"

Fortunately, I already made a Rob Roy style sporran, and I purchased an early styled dirk, and the knotwork on those matches.

Here's a view showing the pleats

Back view showing the stripe

I always wanted to look like a McIan print

Now I can !

Or here's how the belted plaid looks with more modern, semi-formal attire

My wife thinks I'm wearing this because boys always want to be super heroes and if you arrange the back up on one side it looks like a cape.

Anyway, for a minimum of expense and effort this is a neat garment.