A look at some of Wallace's labour-saving mechanical marvels that rarely work as planned. Having problems getting to sleep? Then try the Snoozatron – it plumps your pillows, plays you soothing music and deposits a teddy into your arms. Or how about taking the strain out of mealtimes with the help of the Autochef, a robot that will cook your eggs just how you like them. Or perhaps you might like to try the Christmas Cardomatic, an ingenious way to create a very unique greetings card!

• Peter Sallis