Faux Cape Cod stained glass--Buy a frame. (If painting the frame, remove the glass and matting.) Discard the matting, but seal in the glass from the back with a clear sealant. This can be found with the caulk in a hardware store. This is a very important step because if the glass isn't sealed well, the resin will leak. Position your objects on top of the glass; it isn't necessary to glue them down. I used sea glass and a starfish, but I've also seen them done with sand and shells.
"...attach a layer of foam insulation directly to the inside surface of the foundation (after the interior damp-proofing is applied and cured). Tape the seams... and seal all edges of the foam panels to prevent air from reaching the cold foundation... Then build an uninsulated wood-frame... the frame should remain above dew-point temperature, reducing the likelihood that condensation will form in the wall."