I just received my Aria boards and immediately stuck one on a Neopixel ring with a Sparkfun PowerCell charger and 150mAh LiPo. You can change the color and pattern with Twitter/Web/iOS app, ect. Output on the LiPo is not enough power the Neopixel ring at its highest intensity, so a larger size will be needed, but this intensity is just fine.
I have 20 Aria boards, so if anyone is interested, I would be willing to sell some built and tested boards. PM me if interested and we can work something out.