This is interesting concept and perhaps a little unorthodox, but we're going to share anyways because here at The Bloc, that's what we do! Feel free to share your afterthoughts in the comment box below.
There is a new font program out called "HomelessFonts", and it's exactly what you're thinking--fonts created from the signs of homeless men and women. Now you can download Lorraine's font, Luis' font, and so on. Someone's handwritting can reveal a lot about their personality, ego, and mood. But in this case, it's interesting that one can sense the struggle and hardship of these individuals.
A great thing about this is that everytime you download and pay for a font. The money is donated back to the font donator. What a clever way for designers to give back.
Check out the full details at: http://homelessfonts.org/