Good old-fashioned entertainment in the form of Facemaker by Miller Goodman.
It does what it says – makes faces. Your children can use their creativity to make allsorts of different faces from the 25 wooden blocks included in the set, which should entertain and amuse for many days and even weeks.
You can see some finished examples below, which are quite stylish as well as quirky. If you and your kids want a go, a set sells for £31.