"Don Byrer" wrote

For cheap and durable, how about recycling an empty makeup compact
from your wife/gf/mom/etc. They ride around in purses 24/7. When's
the last time you saw one with a broken mirror?

Bad question. Last time I looked at one, is the answer.

That said, it was still probably useable as a signal mirror.

The space inside could be used to carry a flint and striker and some bits of
cloth, or some fine steel wool, for use as a fire starter, like old flash
bulbs insides.
--
Jim in NC