Cool! What did you use to make the main body? What kind of metal is that part? Thanks for sharing.
All parts are brass, tub and trumpet, soldered by silver solder.
Jet is just hole about 0.4-0.5mm in copper tub,
then I had riveted the hole to the size of 0.25-0.3mm.
(It hard task to me to drill the hole 0.3mm in copper)