cheap and easy guitar pickups

Step 4 Circuit breaker coil

this one came out of a old circuit breaker from a large 220 volt machine
the coil as you can see is covered with a hard plastic{bakelite} casing and screw on contacts for the wires.
when in use an iron core fits into it as you see in picture 2.
flip it over and add a hard drive magnet in the center and it acts as a pickup not as good as the first one but it does work.
it also looks like you could fit it into a regular guitar easier too {not that you want too of course}