I've finished the "Planets" series. I'm pretty happy with how they've turned out- except for Saturn. I don't care for Saturn. That's why I chose it to go under the wine glass in my photo. I'm hoping that you, gentle reader, won't notice its flaws. I love Earth, though, and Jupiter, and I like the visual joke of Pluto with its tiny size and its asterisk.
I made the patterns using MacStitch 2009, and used telescope images of the planets, mostly Hubble photos, that I found on Wikipedia as a basis for the patterns. They are stitched on 18-count Aida fabric, backed with black fabric, and edged in black double-fold bias tape.
I release all of the patterns under a Creative Commons license, which means that anyone has permission to copy, use, and change them- but please don't sell them, or anything you make from them, without my permission. I'm including links to all of the patterns on this post. I made them as coasters, but I would be curious to see what other users people have for them, so if you do something cool with these patterns, I'd love to see it.