I am looking for alternatives to hand-lettering a Comic. One attractive alternative would be building a custom font. (I'll be asking about details on that in a separate question.)
However, I would like add variation to the characters in order to make it feel more natural. Meaning that a character would have to have several, subtly differing definitions. Which definition to use would be determined randomly.
Does any current mainstream font format support this?
If not, what methods exist to produce digital text with such variations?
Or is this simply insane for building the first custom font?