After finding Grand Illusions I was racking my brains for the address of another site I found a while ago, containing 'impossible objects' made from playing cards. Well, this morning I found my way back!
They are called WOW cards, and they are at Ian Rowland's website. He performs all over the world doing a 'Beyond the Psychic' show. No Uri Geller he, he has a self-deprecating sense of humour and self-mockery (while obviously still proud of the great stuff he can do).
It was always Geller's vanity that annoyed me (I remain an honorary member of the circle of conjurers who like fooling people, but not kidding them it is anything 'paranormal'. And speaking of paranormal, have a look at the impossible objects on Ian's site, which he calls PPOs (Permanent Paranormal Objects) which make a ship in a bottle look like child's play. (Though sadly the links to Angus Lavery, and the spoon that changes shape were dead links when I visited today).