Since I've had to reinvest in my Highland attire, I have gone to Royal Stewart. My clan ties are to Cunningham and to Stewart so either works well for us.
Ocean County Emerald Society in New Jersey wear a kilt designed by some of the original members of the band. It is called the "Oceanic" one of a kind and registered in Scotland.
I pipe for the Glasgow Fire Department in Glasgow, Ky as a "ceremonial piper", and I wear the City of Glasgow (modern) tartan. We actually have written permission from the Lord Mayor of Glasgow Scotland to wear their tartan!