Photo only. (Original source appears to be for members only.)
I'm picturing this done with squares cut from "souvenir" tshirts.
Charise Creates: Spring Butterfly ~ block coming soon...
Pinwheel Garden - pattern and or kit for sale
Primitive Gatherings - Pinwheel Garden (Powered by CubeCart)
Log Cabin in a starburst set Ann Arbor Quilt Show 2010
Kaleidoscope Free Pattern that uses "stripey" fabric
Freemotion by the River: Lil' Twister Pillow
034. Estrellas Escher by Artepatchwork, via Flickr 20 blocks each with 5 diamonds. The blocks are rotated 90 degrees to make the stars.
Sew Kind Of Wonderful: Finished Sharon's Quilt!
Modern Trees Quilt A Long (Note these blocks could be paper pieced.)
link to tutorial