In 1899 the Strand invited 13 British celebrities to draw a pig with their eyes closed.

Field Marshal Frederick Sleigh Roberts:

Judge Sir Francis Jeune:

Mary Jeune, Baroness St Helier:

Hugh Jermyn, Bishop of Brechin:

Astronomer Sir Robert Ball:

Chemist William Ramsay:

Stage actor Henry Irving:

Illustrator Sir John Tenniel:

Sir Arthur Conan Doyle:

Novelist Walter Besant:

Organist Sir Frederick Bridge:

Inventor Hiram Maxim:

Magician Nevil Maskelyne:

(Illustrator Harry Furniss says the trick is to use your free hand as a guide.)