They students gave her a fake hand – a stuffed glove on a wooden lever – so she can carry on waving if her arm gets tired.
Whilst it was given as a joke several years ago, she was apparently “thrilled” and took it back to the UK with her.
It is not known whether the Queen ever used the hand in public.
In a book about the Queen, Princess Anne recalled the time the students presented their contraption.
She said: “They gave her a stuffed glove on a wooden lever so you could tweak the end of the…