Construct your own working model compass, complete with protective case from a cardboard flat pack.
This unusual Magnetic Compass kit comes flat packed for you to assemble. Almost all the components of the kit are made of cardboard, with two nails, a pin, a metal popper and a small button magnet being the only exceptions.
Once it's assembled, you'll be able to see the needle move, and even take bearings.
It took us a couple of hours to assemble from scratch, so you'll need some time, a couple of tools and careful fingers, but we think the reward is worth it.