You could greatly reduce the number of tweets by using an encoding that took advantage of the full Unicode spectrum, as opposed to Base64 which just uses the ASCII set.
[1]: https://breakingcode.wordpress.com/2010/01/14/having-fun-wit...
.... huh? This kind of reminds me of this xkcd strip about floor tiles http://xkcd.com/245/
In any case, I kind of wonder why nobody hasn't just thought of PSK encoding their DVDs and walking around town blasting them out of a boombox. I'm sure that will make you loads of friends.