STEP BY STEP: 1. Cut the fabric (40cm from bottom edge) 2. Fold it in Half and smooth it out. Cut off any stray edges 3. Mark along the bottom (every 22cm) and mark along the top (every 11cm) 4. Cut between the markers to make V shapes and cut along the top to separate the shapes. 5. Sewing time! Sew down the two edges of each V shape 6. Turn it inside out and use scissors to push the point out 7. Iron each V shape 8. Take your length of cotton tape, fold it over the rough edge of each v shape and sew it all together!