Throughout the years I have been searching for various Roger Rabbit-related pictures. One find in particular that I discovered was the wonderful fanart of Paul Jaworski. This artist has done a bunch of drawings featuring Roger and Jessica in various comical situations. Below are some of the art he's done of our favourite couple. Often spoofing various movies. I like how he makes Roger cross-eyed in some of these, gives him a more wackier look.
For more, check out comicartfans or his deviantart page