What to do with those old slides? Instead of storing them, why not bring them out as decorative lights in your home? The slide light we found on Shiny Shiny, resembles a long light box, where you can showcase your slides and create ambient light. Unfortunately, it's only available in the UK and is by no means inexpensive. A 2 foot light cost around $200.
Since this was out of reach (both financially and physically), we started dreaming up a DIY solution. The easy answer...buy a light box and mount that to your wall. We found a $100 version at Light Impressions. The rectangular size doesn't allow for the same lighting effect, but a stellar presentation, nonetheless. As for getting the slides to stay put, we imagine double-stick tape on the mounts would suffice. And if you're concerned about dust, a plexiglass cover cut to the same size would be an easy solution.