I have no idea if this is possible, but I remember an article in Douglas Hofstadter's "Metamagical Themas" about Knuth's "Metafont". It sounded like one could d

I have no idea if this is possible, but I remember an article in Douglas Hofstadter's "Metamagical Themas" about Knuth's "Metafont". It sounded like one could define certain variables to alter the equations of the font. This could be one way of easily introducing randomness.