Here's another interesting site with a history of the inventor of the modern kaleidoscope, Sir David Brewster, as well as quite an interesting range of kaleidoscopes in most all price ranges. Some neat stuff:
Professional woodworker specializing in small-scale wood turning on a lathe. I work primarily with exotic woods from around the world and "Dymondwood" a laminated wood product that is dyed a variety of colors and provides a visually appealing end-product. Most of my turning is of kaleidoscopes, desk accessories, cutlery, back scratchers, key rings, etc. I market on the web and wholesale and consignment.