The above image is from the newspaper that announces that a toon killed Acme in the beginning of Who Framed Roger Rabbit. I saw this in the movie and had to hunt around for the image. Jessica Rabbit above looks completely different from her movie version. I assume that this is an earlier (and inferior) design for Jessica that was most likely current during filming, but was changed by the time the animation was actually done.
It has been said that Jessica Rabbit is an amalgam of Red Hot Riding Hood, Marilyn Monroe, Veronica Lake and Vikki Dougan. The Lake influence is probably the strongest, which you can clearly see here.
The earlier version is a lot closer to Vikki, which you can see here:
A wee bit of movie lore that makes me appreciate Roger Rabbit just that much more.