I don't know if this has been posted before, but I just got one and I like it.
Amazon.com: 2nd Amendment America's Original Biker Bandana measures 21"x21" BIKER Doo Rag!!!: Everything Else
Amazon.com: 2nd Amendment America's Original Biker Bandana measures 21"x21" BIKER Doo Rag!!!: Everything Else