homemade heatshield question

here's one for you folks:

I am making a heat shield for my ceiling -- and I need some insulators ... I have not found much available locally -- and I'm trying to figure out what to use.... I could buy some of those home saver ceramic tubes -- but it seems a waste to buy 25 of them when I only need eight or 10....

Any inexpensive sources of these ceramic tubes?? or some other high quality 1 inch or longer ceramic insulators that I can use?? I plan to just use the tube type so I can just put a anchor bolt or a screw into the insulator on the ceiling heat shield, and also I need to attach one of those home saver 3 ft long wall shields...

Thanks!

I could order something off the Internet -- but I'm not sure if I'll get it in time for my stove installation project -- but you get a locally would be better.

hey szmaine:

Thanks! I think I may have a few of those in my cellar -- holding up some old wiring that I don't use anymore. I like your idea!

I also ordered some of the Home Saver ceramic tubes.......

Thanks everyone.

Timv