Where can i find Irish Kilts to buy or rent for a wedding?

My friends are getting married next year on st. patrick's day, they what to do an irish themed wedding, the guys are all going to wear kilts and the girls are going wear black bridesmaids dresses with a dark green belt, need to find website to show them how much it well cost everyone and if they what the guys to buy or rent there kilts. thank you to everyone who helps.