I started scrappy with 1 1/2" strips of various lengths, my darks being blue/green/purple and the lights being any lights that would go with those shades, and then I sewed them end to end, using a diagonal seam. I began with sewing my darks to a 2 1/2" red center square (chain stitched). 
After cutting them apart, I chain sewed them like I would a mile-a-minute quilt block, not paying much attention to where the seam fell into (unless I cut it off through the middle). 
Did you notice the 'upside down seam'??? I guess I needed to pay attention to the right side of the fabric-- teach me to start with a long strip and use fabrics that look the same from both sides... (hence the 'ripping out' photo).
Now it's right...
Once I've chain stitched the blocks, doing the same row at one time, 
I iron the strip I just sewed away from the blocks and cut them apart
I do this for each row...
I only made four blocks for this tutorial, but I'll probably keep adding until I get to the size block I want and the number of blocks I need (does this look like another UFO???). Here are a few of the variations of patterns.
