So here's the marquee I've designed for my cab. I don't have any real artistic talent, so I decided to go with a simple idea - create an epic battle between a bunch of classic games. I've always been a fan of William stuff, so most of their classics are represented. All in all, there are objects from 13 different games - mostly space themed.
To create the objects "game characters", I used mame screen captures, then increased the resolution to 300dpi and enlarged about 1000%. For each game I created a palette of objects - if anyone is interested in these, I could post the Photoshop files.
For the battle, I played with scale a bit, and mixed everything up. My family got a kick out of guessing which characters came from which games and what was wrong.
All in all, it's a bit busy, but I like it.