Be lazy, don't bother to try to make it complicate. Tissue paper flower is pretty and easy, by definition. It will always turn out good.
Lay a few layers of tissue paper and fold, and then tie with pipe cleaner or twist wire or rubber band or any thread. Lift up the paper. Done.
I guess it pretty because tissue paper is soft, light, semi transparent. It works very well with crinkling. Good for young or naughty hands.
Here is video of it.
Of course, you can also make it fancier or more complicate by cutting and dying. I am going to do that right now.
See you later, aligator and don't forget the tissue paper!!
There you go.