Twelve mini mandalas that can be stitched individually or linked together with a creepy bat border. They are stitched in Classic Colorworks mostly, with a House of Embroidery variegated thrown in. Charts are available through StitchyBox.
Growth Rings came out in 2008 and was stitched in Vikki Clayton's Hand-Dyed Fibers, now out of production. It's still a popular chart, but stitchers have asked for info and tips on conversion to another silk.