Each one is custom made by Custom-Metal in Germany ¹⁾

The headlight shell came from an old $3 brass (or brass-plated) lamp at a local thrift store.
With some cutting and grinding, it turned out to be sized just right for the stock Harley headlight and its rubber mounting ring.
A few light coats of Duragloss candy copper paint (translucent) and a couple coats of clear was used on the OEM headlight rims.
Wiring is hidden under the tank.
The mounting bracket was made out of some scrap billet. ²⁾

This particular brass cover is made by Kijima in Tokyo.
It was bought from Webike.net in Yokohama. ³⁾

50bmg shifter:
The shoulder of the casing was cut off with a bolt epoxied into it. ⁴⁾

This is a NRHS round AC with a brass center added. ⁵⁾

Shotgun shell inside the grips. ⁶⁾

Here, a brass woven mesh sheet was cut and bent as an insert for the top hole in the rocker box (excluding models with dual plugs heads).
The full sheet is unpolished, mill finish, ASTM E2016-06, 12“ width, 12” length, 0.025“ wire diameter, 54% open area).
Measure the opening and add some on each side to fold down for sides.
The first bend is simple. The second bend is just as simple but once you have two opposing sides you need a bender the right size.
The back of the vise worked well.

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The inside bends ends had to be beveled back some to make room to shove it down the hole.
Once it's bent properly, it can be installed with a little RTV silicon on the sides to help keep it in place.

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