Tom Karen, the British designer behind the Raleigh Chopper and Marble Run has died aged 96, his family have confirmed.

His daughter Eugenie told the Guardian: “It was a privilege to have been close to such a creative person. He made things constantly and even his most throwaway creations were things to be treasured. I have a paper Spitfire that he casually made for my sons in minutes, but it captures the aircraft’s character perfectly.