Limited Edition Gold Ferrofluid

The Limited Edition Gold Ferrofluid is a colloidal liquid made of particles less than 10 nanometers in diameter. When subjected to a magnetic field, the nanoparticles form regular patterns of peaks and valleys. Bring a magnet close to the bottle an the golden blob will jump towards the magnet, It becomes spiky and alive. It follows the magnet in way that makes it look almost alive.