Crystal grower, very high temperature furnace designer/builder.
My company makes Ruby, Sapphire, Cubic Zirconia (of many formulations) NdYAG (laser crystals). We make more varieties of crystals that form at high temperatures (2,050˚C-2,800˚C) than any other company in the world. We hold patents on a revolutionary way to make the world's least expensive Silicon Solar Cell.
We also make speciality paints and lacquers. We make a special type of wood toys that look like large Lincoln Logs. http://www.shelbygemfactory.com/Megalogs_ep_35-1.html