Redbeard Math Pirate on Flickr created 15, spanning the range of cart art on the Atari 2600 - original VCS, second generation, third generation, early Activision, and original Imagic. More of his offerings below:
Yo dawg, I herd you like memes ...
Yeah, and 33-69 is PORN.
I've played this game. It's like Outlaw with multiplayer.
Fake Atari Games [flickr]