Clay Covered Electric Light Switch Plates are available in hardwared stores in white plastic at a very inexpensive price. In this case I was teaching a class of 3 and 4 year olds, so I kept the designs simple. Older children can cover the whole thing with fancy clay slices. It is also softer to use. We also used the new Glow in the Dark Sculpey for the decorations.
Children love taking turns turning the handle of the pasta machine.
Make sure to mark the childs name with permanet marker on the back of the switch plate. Make sure to remove the clay from the switch hole and the screw holes. I suggest you also use your finger to indent around the screw holes other wise a longer screw would be needed than the one given to you at the store. Decorate using canes and snakes. Or use snakes to write their name.