Ok here's a couple other bits..
1) New light for old sealed beam headlights.
Most all of our bikes are old. Old bikes come with old lighting, generally sealed beam and unfortunately, not only are they less and less available, more and more expensive...they generally suck. Dunno about you kats but I like seeing where I'm going whilst riding at night.
Snot a problem man! If you have a decent sealed beam and a light base to fit the bulb you want you can easily rework to suit. The glass used in sealed beam lights generally isn't tempered, at least to my experience. As such the glass can be worked just like any other. I used to work in a glass shop back in highschool, we did all sorts of weird stuff back then. I mounted a pair of H4 bulb bases into the reflectors of a 31 Ford, worked well. Don't see why it wouldn't here so long as your new bulb isn't going to be too deep....
Get yourself some glass etching liquid, most craft stores will have some. Etch the back of the sealed beam from the bulb connector to the rim. Then cover the entire light in a couple layers of painters tape, use a belt sander to basically grind off the existing connector/filament base such that your new bulb will fit inside without contacting. If you can, a wet sander is better but if you don't have access, work slow and let it cool often. If it gets too hot to hold with bare hands then you run the risk if it shattering.
Now take your other light with the bulb mount and since it's likely plastic, dremel off the base and file the edges clean. You want to leave enough material to completely overlap the cut out sealed beam. At this point, I'd scuff the inside of the new bulb flange, peel the painters tape off the back of the formerly sealed beam and epoxy the two sections together. Lay the sealed beam on a flat surface such that it's supported and won't wobble. Align the new bulb flange to the glass portion so that it's as straight as possible though you'll have a certain amount of room as long as it's not ridiculously out of alignment. Once the initial epoxy application has hardened, I'd add a little fiberglass cloth and another layer of epoxy though that may be overkill.
things to keep in mind:
1) Do a test fit, under power. There's a little 'wiggle room' as far as filament position is concerned. Just be sure that you're getting good light output in a decent pattern.
2) Be sure you're housing and the new bulb flange are both oriented the same ie; up/up not up/down
3) Before using your adhesive of choice, be sure the glass housing is nice and clean. No need to trap dust and gunk.
Someone asked about using something like silicone caulk as an adhesive....dunno why that wouldn't work so long as the temps are within range.
And also: Plate mounts.
Lost of us are looking for nice plate mounting brackets. If you're of the mind to make yours...more power to ya! If however you'd rather there was something to be had, here you go:
Curved:
https://www.1977mopeds.com/product/1891/License-Plate-Bracket--Curved/
Flat : https://www.1977mopeds.com/product/991/Universal-License-Plate-Holder/
Flat Lightened: https://www.1977mopeds.com/product/1890/License-Plate-Bracket--Lightened/
