A picture is worth a thousand letters:

Here’s a little something I’ve been working on, a program I call “ARTSCII”.
You can download ARTSCII here. (Windows only for now, sorry)
It’s different from normal ASCII art in a similar way to how my collage software is different from regular photo mosaics.   I went at the problem from a completely different [...]

I had this idea about 5 years ago, from watching a kid assembling train tracks for a toy train.  I thought, what if the train could just “record” the tracks?  You put the train in record-mode, move it around a bit, then it plays that loop back over and over again.
Normally what you should do [...]