It would stretch like a rubber band stretches just a lot less. Wood, metal, whatever is slightly flexible. The stick would either get slightly thinner or slightly less dense as you pulled it. Also, you won’t be able to pull it much because there’s so much stick.
I know some phones are starting to work with satellite comms,
so these may be replaced by cell phones in the near futureheh, maybe not. See the comment below. At least currently, I have several friends who still have wilderness beacons.