Going through some odds and ends stuff I happened upon this sketch I created at Cal State Northridge from my days teaching Character Design. It was a quick class demo drawn on a Cintiq and projected on to a screen at the front of the class some time around 2009. I was describing a basic approach in developing a variety of designs from a single concept. In this case by utilizing an animation principle called squash and stretch. By elongating the design both vertically and horizontally you can get 3 concepts out of 1. Helpful in expanding upon a single theme if you're struggling to come up with alternative images. Maybe this tip will help some of the character designers who read this.