I was looking forward to buying a peanut flashlight and wearing it as a pendant when I paused to consider what might happen if I wore it with a white shirt. Because I'm allergic to nickel, I would wear the flashlight with a titanium chain, but unless the light were titanium as well, I'd have to wear it over my clothes. Which brings me to my question:
What kinds of metal won't stain a light shirt?
If none of the metals used for micro flashlights are stain-free, I'll resign myself to wearing a black shirt with a pendant-worn light whenever I hike.