I'm not a D&D man myself, but I'm with a group that plays Hero System (because apparently they don't think D&D is complicated enough). Since the game day is Saturday, and Saturday is kilt day, I'm almost always in my kilt (frankly most days I don't have to work in my scene shop or mow the lawn are kilt days). My group doesn't care... and in fact one of them ordered an Alt.Kilt (but i haven't seen him in it yet, but I've seen the kilt, and it is awesome!)
Wear your kilt. Tell them being manly enough to have a kilt gives +2 to all attacks! (And if your GM goes for it, can I join you game... my GM just gives me a dirty look when I suggest it)

Chris