Fila foam
You will need:
• Fila foam - available from art and craft shops.
• Begin by folding a piece of fila foam in half. Make some little scissor snips in each corner, but be careful not to cut right to the edge.
• Do the other side too.
• Open out the fila foam, and fix an elastic band round each of the slit corners.
• Slip the corner covers of a book under the elastic bands.
• You can make these book covers in any design - even using card if you haven't got any fila foam.