Mebbe I'm alone in this opinion, but if you're going to decorate a room with them, I think you should buy them full and empty them via smoking the contents. You wouldn't hang another hunter's trophies, would you?
Just MHO. BTW, I give away all but the really cool boxes (which I save for things like a pen box on the desk), so I'm not being cheap, just offering an opinion. As for lining your tub or cooler, Cbid does place lots of wooden boxes up for bid under "merchandise" and most go pretty cheaply. You might also ask your local B&M.