What electronic device would be worth having, even if functional by itself, after an EMP wipes out the power grid and supporting infrastructure? Your flashlight should be fine after an EMP if is one of the old style ones with just a basic switch. The newer ones that cycle through various modes and brightness levels might be toast though. Transportation (motorcycle, car) would be good for sure, but those are probably beyond the physical size that a normal person could protect.

I haven't really thought about "after the EMP" much, except "nothing would work and we'd all die shortly thereafter". Much of my thinking along those lines comes after reading the book "One Second After".

What type of devices were you thinking about protecting?