B&H is "Mecca" for photographers, and you can find anything for photography there. Or you can make one yourself. Go to a fabric store, get a couple of yards of white nylon (not the ripstop nylon), make a frame, I've used 1/2 pvc pipe and fittings from the hardware store. drape the white nylon over the frame that you've made, and wa-la, light box. While your at the Home depot, pick up some daylight CFLs for a light source, cheaper there than a photography store. And if your really in a pinch, white bedding sheets (I've used that for reflectors)...your wife might not like it though.