We received a gag gift of giant undies at our wedding 16 years ago and I want to display them to be 'art' above our bed. It would be roughly 40 x 60 so I don't want to drop the major dollars to do some custom framing and at that size, there are no ready made frames. We do not have a headboard. I want to do more than thumbtack them to the wall. I am open to suggestions on how best to do this. Thanks!