A new interesting project could be a Lightsaber like this:
http://imageshack.us/a/img197/5847/i6xq.jpg
I'm pretty sure that most of the parts are custom made on this. My goal would be:
-built with authentic found real world parts
-same lineup as the ANH Kenobi
This would say I have to find some parts which can be called "close enough" parts, but related in view and look to the original parts ... any ideas or suggestions?
I don't know if you are still wanting to do this, or have found the emitter, but I did see a lot of these on eBay:
, ,
There are even some with the outer emitter portion. It's called a "stator" or you may find it by looking for "ignition coil", "magneto", or sometimes "solenoid".
I thought it looked a lot like Tony Stark's ARC reactor when I stumbled upon it looking for Han's unknown belt greeblies with the posts on top. I think for sure that those belt greeblies are vintage appliance (refrigerator) resistors from England, but who knows. Sorry for multiple attempts to derail with this comment.