[jcassity]

here is the patent i mentioned earlier that gave me the go light to proceed.

i like his idea better than mine ,, corrigated metal slip on cage around the tube,,, yet the dislike i have is that it depends on the tube base for heat wicking.. ... yet.... his design  mentions a convetion being created by way of the design. 
From my desk,, it seems his design could "trap" heat in even during the time which convection is being generated.

I coud easily make plenty of these designs in about 5 minutes.

http://www.google.com/patents/US2745895