The first technique we all learned at Marilyn's Melrose Inn Quilting retreat was called split fingers. In most cases, we chose two strong colors and two complementary ones, sewed one strong to one complementary in a long strip on both sides of the strip and then cut out our wedges. In my case, I used a strong teal and a light fabric with light teal and fuschia on it, plus a strong fuschia with a light pink. That made two sets of split fingers for me, which I could use as wings for butterflies or flowers. The quilt above is one of Marilyn's critters, and down below is another example of how that technique can be used.
And lastly, here's a teaser using several of the techniques to make flowers and bugs. The leaves were another part of the class and will come later.