But the Queen and the Queen Mother have both received free copies of a sell-out calendar in which members of a Yorkshire branch of the Women's Institute have posed nude.

The members of Rylstone and District Womens' Institute near Skipton decided that it would be appropriate to send the calendar to their royal Women's Institute colleagues.

As well as being in the best possible taste - what the women call "hairy and wobbly bits" have been tactfully camouflaged - the calendar venture is making thousands of pounds for leukaemia research.

3,000 sold

Already the initial print run of 3,000 calendars has sold out. Such is the demand, however, that another run of 10,000 copies is being produced.

In the two weeks since it was launched amid a fanfare of publicity and critical approval, the models, all aged between 45 and 60, have been inundated with requests to buy the calendar.