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Tim - have you tried surplusshed.com?  might be able to find  
something big enough to disassemble....
	


On Feb 15, 2008, at 2:32 PM, Tim Pula wrote:

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> Thank you all for the help regarding the aurora experiment. I know  
> have a
> few things to test and deviate from. I now have a question about  
> parts. I am
> looking for an inexpensive source for iris diaphragms. Something  
> between 60
> and 100mm diameter would work best. I am also look for something  
> that is
> relatively durable. I needs to last a month on the floor.
>
>
>
> Tim Pula
>
> Science Coordinator
>
> Gulf Coast Exploreum
>
> www.Exploreum.com
>
> 65 Government St.
>
> Mobile, AL 36602
>
> 251-208-6858
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>
>
> Join us each month for a new experience in the Ciba Lab.
>
>
>
> JANUARY 2008 OUR BODY The Universe Within
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