How to replace @ symbol with your own selected symbol next to your twitter username?

[Veronica]

I saw this user a crown symbol next to her username instead of the @ symbol. How?
Sorry. I mean I saw this crown icon next the @ symbol. And when you click it, it goes to the persons dashboard or whatever. When you get to the dashboard, the crown goes on top of the username

[Comicbook Reader]

If you want your Twitter name to work you must use an @ symbol. No @means the system doesn't recognise your name.

[Lucy]

im guessing the crown was actualy at end of their name

[✿Cat✿]

@â™›YourTwitterName

The crown comes from the chess symbols in Unicode:
http://en.wikipedia.org/wiki/Chess_symbols_in_Unicode
Unicode is a special character code that should work on any web browser to display text symbols and characters.

more unicode symbols:
http://unicode-table.com/en/sections/mis...s-symbols/

Or dingbats:
http://unicode-table.com/en/sections/dingbats/