I know people use the handles from old graflex flash handles as prop lightsabers..
But does anyone have any use for the reflector disks?
i suppose they would be good for making a desk lamp. But desk lamps are not hard to come by.
Anything else?
Solar cookers for Vienna sausages? lol. (In the U.S. those are basically tiny hotdogs that come in a can, I would hope they are actually something good in other countries.)
I like Jim's idea, but also don't rule out desk lamps. Sure, there are no shortage of desk lamps, but using a flash reflector would make something interesting and unique.
Of course, spares for people who would need them is also a good idea.