My newest idea. It is incredibly simple, easy to make, and it works. Jerb in the center being heated by the $20-odd 250-watt halogen work light from a home improvement store with an inline halogen dimmer switch that i added to the cord. Drill 2 holes, get 2 easy to find glass hoobobbies, put it together and Robert is your mother's brother. I call it Martin in honor of Steve Martin's pioneering work in arrow-through-the-head technology.