There are a few cute ones at Crate & Barrel, right at 100 (Some go over, I think the priciest is 120). Almost all of them seem to have a color profile that would go well with navy, if they aren't, too (slate, chocolate and tan seems to be super in). www.crateandbarrel.com/bed-and-bath/duvet-covers/1
Oh I like a lot of those, thanks for the ideas. I am not sure we could do a duvet with brown/blue in it because our bedroom furniture is black. Is that a nono?