I was introduced to them at an amusement park where they were selling "giant" ones for $5 which was about as cheap a thing as one was likely to find. My friends and i marveled at the display and picked out the colors and the woman made them up right then and there. Which was a little disappointing cuz it is just fold, fold, fold, tie, fluff, fluff, fluff. "That's it??". You feel kinda ripped off once you see how the magic is done. Heh!
Regardless they are pretty and you should try it. Diy. Youtube. Lots of sources out there.