An image I saw in Phil Dangler’s photostream clued me into this awesome application:

This Atari 2600 Label Maker produces authentic looking Atari 2600 “Picture Labels” using your own image and title.

The “Picture Label” is the most common Atari 2600 label and features a large image on a black background. The game title is always in upper case but varies in color.

(Pictured is the artwork from the Brain Machine article in Make 10). Atari 2600 Label Maker – Link