JavE - free Java-built ASCII Art editor
I’ve known about this program for a while, but I guess its worth sharing now.
Its basically an ASCII art program, which works like a paint program. Sure, it’s limited, but you can actually draw with the mouse instead of typing. Plus, as it is built in Java, should work with any system.
Related: I’ve posted about Bill Miller, who uses this app to create colourful layers for his work.