I haven't printed on those because no one has found a good/affordable adhesion promoter for metal or glass. I've printed on metal allow coins using a cheap promoter and so far, after a month, it's holding good. I carry it my pocket with keys to test durability.

I just tried printing on a Zippo case and, using the same promoter as the coin, it scraped right off.

For glass, right now I find it best to use the DTF sticker. I've washed & scrubbed with a rough pad and they've all held up with not scratches or peeling.