Map latin letters to visually similar unicodes.
See here for a demo:
https://elsamuko.github.io/Hide-my-Name/main.html
Sources:
https://en.wikipedia.org/wiki/IDN_homograph_attack
https://en.wikipedia.org/wiki/Cyrillic_script_in_Unicode
https://unicode.org/cldr/utility/character.jsp
http://shapecatcher.com/