Correllian Exports has the ANH set on ebay -- maybe send him a message and ask if he can do an ESB set for you. corellianexports | eBay
he also does resin droid callers -- but I don't see one on ebay right now.
if you want a metal one, and don't want to spring for a vintage kobold flash,
evolution props makes a close facsimile with a 9v battery and a lightbulb that's pretty cool. Evolution Props