You can do a lot with 140 characters. Let's turn Twitter into MySpace, circa 2005.
Character lumping
Certain kinds of characters are tiny and stackable, and in high concentrations form a solid body.
Source: @Rhodes411
Trick fonts
It's not a different font, technically: these characters are actually hidden within unicode. So are the characters used to build the next three.
Source: @harej
Triangle bombing
Source: @tphd
Letter flipping
Source: @nhatureboy
