Highland Express is in North Las Vegas but don't think they have a retail operation. Freindly folks, you could call http://www.highlandxpress.com/

The Las Vegas Celtic Society just had their annual games. There's a list of vendors on the site http://www.lasvegascelticsociety.org/games/vendors.html

but don't know if any are local.

Highly recommend Nine Fine Irish Gentlemen restaurant/pub in N.Y. N.Y. delicious food and great t-shirts and stuff.

I go kilted when visiting Las Vegas and usually meet other kilted guys.

Ron