Newton's cradle has enjoyed a fantastic run as the go-to distraction toy in offices around the world. But today it's officially dethroned by this hypnotic ferrofluid flask that's basically magnetic magic in a bottle. Read More >>

For £10 a newton's cradle provides about 10 minutes worth of distraction at work. If you want piss away the whole day, you'll need to spend a bit more. Like the $125 (£80) pledge needed for this Ferrite ferrofluid toy. Read More >>