Was it the Twist & Turn Disappearing 9 Patch? Here's one:
http://www.quiltingboard.com/t-16190-1.htm It is a variation on the regular D9P and creates a pinwheel in the center if you turn the pieces correctly.
Here is another that is a string or strip quilt--sort of a twisted Rail Fence:
http://quiltville.com/striptwist.shtml
And another that sews squares onto strips and then cuts on the diagonal of the square:
http://www.quiltingboard.com/t-49685-1.htm