Step 1: Fabric Flowers
Iron them flat and then fold again and again and iron flat, to make a triangle with a rounded edge.
Step 2: Sewing Them On
Use a long piece of cotton and fold it over to thread it, so when you use the cotton it is 4 strands not one, you need the extra strength.
Then make quite large stitches along the rounded edge of the triangle, continue with all 5.
Step 3: Tying Off
Tie a few knots to ensure it all stays together.
Step 4: Glueing
Then glue a button on the front of the flower. This will hide all of your untidy edges. Cut a circle of foam or felt to stick on the back. Then attach a broach bar or hairslide.
Step 5: Done
As a variation, you can make a 4 petal flower by only folding the circle once and sewing around the curved edge.