DIY PAPER BALL.
1. Make a pentagon and make the sides as long as the diameter of your round object.
2. Now you´re going to draw the flowershape. Place the round object so you have the equal amont of object on the both sides of the pentagon line. Because you want to draw half the circle.
3. Make 12 simular flowershapes. I found it easier to use one as a template for all 12.
4. Cut along the pink lines. Make sure you cut half the diameter. No more nor less.
5. Attach the flowers to each others.
http://designoform.com/tag/paper
(Source: designed-for-life)