Don't do it guys, this is really easy to do, you can do it yourself.
Go go 'create a new account' and paste this in <img=1> for a Jagex Moderator crown, <img=0> for a Player Moderator crown, and <img=2> for the Quick Chat symbol, and then type a name, but it must be three letters or numbers, or less.
To get the symbol, go to a RuneScape world, and type whatever sequence you put in your name, nothing will show up until you're done typing, but don't worry, it'll show up.
These symbols are pointless, because they only show up when you're logging in, no on in-game sees them, your name just appears as Img 1 xxx.