1/ Cut a pentagon out of card. Drawn in the diagonals to make a smaller pentagon in the centre.
2/ Draw the diagonals across the smaller pentagon, then extend them.
3/ Cut out the five triangles at the edges.
4/ Make a second copy of the same shape. Bend and open the card along the edges of the centre pentagon to loosen it up. Put the two shapes together as shown.
Wrap a long elastic band around the edges, going in front of and then behind each corner. Release the shapes carefully...
...TA-DAH!
