Here's some of the steps the The Incredible Rockhead (previous entry) went through on their way to final.
Here's Chip and Spencer. Their first drawing.
The boys here are a couple of years younger than they ended up being in the book. According to the art director, Chip wasn't "awkward pre-teeny enough." They wanted him to be a little more... that.
Troy is the bully.
This is the sort of who guy picked on me a couple of times when I was in junior high.
Here's how Rockhead came to be himself.
He's a skinny kid, but his head is this gigantic hunk of rock.