This is an example of an impossible object, because it is so hard to envisage how this complex sphere with the star inside could be turned from one piece of wood. The puzzle is therefore ‘how is it made?’ The object is shown resting on a separate stand. This was a gift from skilled woodturner David Springett. David explains how such a piece can be made in his book ‘Woodturning Wizardry’. The book was first published in 1993 by Guild of Master Craftsman Publications Ltd, Lewes, East Sussex.