I've always been a fan of The Far Side, and one day while doodling in my sketchbook, I drew an egg wearing a trenchcoat standing over a puddle and two popsicle sticks. I found amusing the idea of an egg detective solving crimes involving 'living' household or grocery items; the idea lingered in my brain until I decided to expand on it.
A fim course at McGill introduced me to film noir; as my idea developed I could visualize Slam (the name came pretty easily, a nod to Denny's breakfasts and egg commercials I remember fondly from my youth) in a black and white world both literally and figuratively.
Here are some early pages that were printed in an issue of Comicopia. They're pretty rough and incomplete, but give an idea of my thought process while developing the concept: