Here's my take on it, both with and without the patches outlined. The two PDFs are the rotary cutting charts for each of the blocks. The snowball block is constructed of small squares which would be great if it was scrappy (as with a scrappy background) but if you are just using one fabric for the background you can just stitch and flip the corners or use your favorite method to snowball the corners. This is based on 12" blocks.
Enjoy!