Is there a story behind the Compaq motherboard 'doodles'?

Long ago, in the days of the mighty 486, some Compaq motherboards had pictures on them. I remember one being of Wile E. Coyote, I think there was one with the Roadrunner, and one had some sort of castle tower or something. Since we worked with a lot of Compaqs where I worked we used to set them aside and collect them.

The other day I remembered about them and went looking on the web to see if there was any story behind them. Oddly enough, I found nothing. The best I got was someone else asking roughly the same question (with no answer) and one picture of a motherboard with a skier on it.

Does anyone know anything about them? Perhaps know someone that worked at Compaq back then? Or know someone that knows someone?