K.K.
For room decor, I'd look at the company store's kids stuff. They have all sorts of themes and though the color scheme isn't "girlie" I think the items can pretty much go either way. They have everything from Dino to Space to sharks, etc. Quality is good and prices are reasonable.
But definately there is a nitche market out there for typically gender specific things to cross over. You should totally go for it.