The end of https://homestuck.com/006273 contains a nicholas cage easter egg, and can be seen there just fine. However, the cage segment also existed on its own at the page darkcage, which can be seen here: https://web.archive.org/web/20170221182450/http://www.mspaintadventures.com/?s=6&p=darkcage

This is not yet hosted on homestuck.com, and judging by the darkcage2 link, should be at https://www.homestuck.com/extras/darkcage