The Pampered Pirate has t-shirts. Not your typical pirate wear, but cute pirate t-shirts like "Got Wine" and stuff. For authentic looking pirate wear, I'd saw thrift shops would be good. I've been thinking of Mardi Gras and wanting long skirt, bandanna, and the hardest part - shirt. Maybe a puffy one or one that looks like a corset. I saw a really cute (but expensive) corset type on Esty.com
Would love to see pics of what you come up with!
Maybe Victoria's Seacret.
Sorry, couldn't let it slip past.