You can see the clip on the back of the flower and the holes in the knit of the hat. I just make sure I slipped the clip through the larger holes so I didn't damage the hat.
Now here are a few other things I made that take a little more skill and some time.
The mesh headband and the tube top of the tutu where also purchased at Joann's Fabric. I think make a pompom from 6 inch wide white tulle using a needle and thread and attached it to the headband with a safety pin so I can put other things on there as I would like. For the tutu, I cut strips of the 6 inch wide tulle and looped it through some of the holes in the mesh and knotted it. This was not a difficult project, but it take some time to do.