+1 on making a metal replacement. To re-use the original nut, a washer or disc of same material as delivery tube could be found or turned on the lathe, to fit the inside dim of the nut. Make the disc ID a close clearance fit to the delivery tube. Silver solder or bronze weld tube to disc, bend tube along the length or at tip to suitable jaunty angle , and there you are. The outer end of the tube could be peened over to make a smaller ID delivery nozzle if some more energetic squirting is needed.
Copper tube, brass tube, or any sort of brake line out of a car would all make good delivery tubes.
Wise to check hole in disc and tube are open after solder / braze op.
Edited By Jeff Dayman on 05/04/2021 22:51:48