Nice answers for unicode in: https://security.stackexchange.com/questions/128286/list-of-visually-similar-characters-for-detecting-spoofing-and-social-engineeri
» # char_codes.txt is https://github.com/codebox/homoglyph/blob/3f61c31f4bb01c5312a7763dc6e226729417c8e7/raw_data/char_codes.txt
» python ~/to_ascii_char_codes.py < ~/Downloads/char_codes.txt
['0', 'O', 'o']