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

Thu Jan 12 14:54:56 CST 2017

I've been following this topic, and suddenly realised… that I don't actually have any particularly rare or unusual items – the nearest I can think of is a Commodore N-60 navigation calculator, but I also have two early Apple IIs.

If I can mention items that I have owned, the list becomes slightly longer: a PC532, Symbolics MacIvory II and a TI microExplorer.