Eventually, I settled on a simple owl image. I plugged it into Photoshop, made a grid, and then made a colour-block pattern for a cohesive shape that was aesthetically pleasing. I had to fiddle around a bit and alter the owl's shape to come up with something I liked. (Yes, yes, I know a few of you have already alluded to another shape you see in the pattern... Get your minds out of the gutter!)
This square consists of 25x25 little squares.
You can make learn how to make your own c2c square using Sarah's handy video (seriously, this is all the instruction you'll need!), and then make a pattern for whatever you'd like! I figured out well after I'd started that you don't have to make a perfect square. You can make any shape, really, so long as you understand how to make corners and edges. I recommend starting with a square or rectangle, though.
I've added onto this owl pattern and am in the process of making a rectangle that also includes a small heart and the word "love." It will probably be turned into a small blanket or throw. Eventually.