I hand-draw most of my charms one at a time.  So much work, but the end result is far more interesting.  Usually I'll come up with something and Photoshop it then print it out so I can trace it.  This makes for a much more consistent product.  Which is important when your trying to make matching earrings.
While I was working on a bunch of different panda pictures I got distracted by an idea floating in my head and ended up with the doodle below.  I was thinking along the lines of “Look Mom I found something even a Storm Trooper can blow up!”.   Don't know if I'll ever use it, but it made me smile hope you enjoy it also.