The only ones that I've seen were either on television or at Busch Gardens where there were performances at a theater in the Ireland area. They were lovely, but might take a large machine and lots of planning. I'd advise lots of pictures of similar dresses, before you begin, and a good pattern for the dress, itself.
I just love those dresses - I have a friend who has 2 daughters who love Irish dancing & they have lots & lots of medals between them.
We are from the UK & those dresses are very expensive, my friend had paid £500+ UK POUNDS for 1 dress!!!!
If you are able to make theses lovely dresses then I say Go for it !!!!! Good luck & post some photo's of the finished product - so many hours of embroidering goes into these dresses !!!!!
Thanks so much for you encouragement!!! I will post pictures. Unfortunately, I know it will take time and I've heard some horror stories. But, I will go for it!! Have a great weekend!!!