Information Unlimited was the first thing that came to mind. Growing up in the 90's, I would eagerly await the catalog, then read and reread it, saving up all t

Information Unlimited was the first thing that came to mind. Growing up in the 90's, I would eagerly await the catalog, then read and reread it, saving up all the money I could for the wonderfully dangerous gadgets within. The Ion ray gun was amazing - it would light up a fluorescent tube from 3 feet away, or send a purple corona into space. I would cut school to stay home and solder their kits. Their R&D line fielded many of my calls, and were incredibly patient with me. Pretty awesome to hear about the guy who started it!