Very simple, but almost hypnotic in its effect - watch the shifting sands, and see the amazing patterns!
A simple form of animation keeps this cowboy riding on and on into the sunset.
Con as in trick - this little box is not what it seems.
A circular saw - best kept for demonstrations on the antique wooden table!
A mechanism from the Middle Ages, and a very early awareness of environmental issues, in this unusual toy.
A gorilla climbing up a building called the 'Manhatten Bank' - what does that remind me of?
Made specially for a restaurant that specialised in jokes and tricks. Yes, I said restaurant!
A spinning magnet, an elegant piece of kinetic art, all make up the Spiraculum.