Compass in five minutes

The first option is the simplest. Let's take a stronger magnet and tie a thin thread to it. The thinner the better.

Second option. We take a bowl of water, a marker, a knife, a magnet and a foam plate of half a cookie, meat or other.

Use a knife to cut a slot and insert a magnet.

We put it on the water and check its functionality.

Next, write the direction with a marker.

All is ready.