Start with about a 1" ripped strip of fabric (you can use any width...this was the width I liked best). The length and weight of your fabric will dictate the end diameter of your flower.
Fold the strip in half and dot a little fabric glue on the end 1/2" or so.
Roll the glued end a few times to get a nice tight center.
Then, once you have a center you like, start twist/folding your fabric away from the center as you roll.
It will start to look like this. Periodically secure the layers with fabric glue as you go.
Continue rolling until you have a flower that is sized the way you like, but make sure you leave at least a 1" or 2" tail (enough to cover flower bottom).
Spread glue all over the bottom side of the flower.
Then fold tail down to cover glue. Press flat with your fingers.