Magnetic resonance with magnetic giraffes!

A magnetic pendulum that shows chaotic motion. It is even suspended by a magnet, which allows it to rotate freely.

The Magnetron toy - two magnetic spinners that communicate with each other...

Another magnetic pendulum, but this one is battery powered with a little 'kicker' in the base. It will run for several weeks, until the battery runs out!

A rotating mobile that spins to and fro. Again, a battery in the base powers it for a very long time.

Finally, a large mobile with a number of magnets, which gives a beautiful chaotic motion - music of the spheres maybe? Again, battery powered, so it will run for several weeks.