I got this idea because I accidentally truncated a number or two off of the links to ChrisZ's sketches, yet something still loaded. From what I can tell, putting any number after the url () will bring up something. The number range from 1 to about over 7000000
So, the game: randomize a number from 1 to 7000000 with https://www.random.org and see if you can find something that is either not garbage, or from Epicmafia itself and post it here
Example: http://sketchtoy.com/1124964
As a random note, a lot of these are just people writing in what I'm pretty sure is Spanish.