Circle based designs have a pretty high profile. Apple's logo is made this way, and, apparently, with all kinds of special proportions in the ratios between them. Some think. This appears to be nonsense, and here is the indepth article that debunks it:

http://gizmodo.com/does-the-apple-logo-really-adhere-to-the-golden-ratio-511410550

Nevertheless, you can see that it is heavily based on circles.

ReSteemed because I want this to be the Steem Mascot, like Tux is for Linux. It's so freakin cute.