What's the rarest or most unusual computer-related item do you own?

[Jon Elson]

I also have an Allen-Bradley 7320, a CNC machine tool 
control.  The heart of it is a 7300 "industrial processor" 
16-bit minicomputer.  I used it for a year or so to run a 
retrofitted Bridgeport milling machine, but got tired of it 
breaking down, which it did fairly often.  Once I got EMC 
from NIST running, the A-B was turned off for good.

http://pico-systems.com/images/S_AB7320D.jpg

Jon