Stained Glass business. If you're an artist who likes to work with glass, and wants to show others how to do it, this is the biz for you. Business Overview Launching a business that focuses on teaching people how to make stained-glass items, such as lampshades and sun catchers, is a terrific low-investment business opportunity to initiate. The business and instruction classes can be operated from a homebased workshop, or the classes can be provided for students and operated in...