☞ utf8 characters is an extension that contains a list of cool characters ☆ ✪ ✰ to copy and paste into your messages ❀ on sites that use utf, like twitter or wordpress 
➩ I 
Warning: only for modern Operating Systems.
Approximately 80% of the characters appear in Windows 7 and 10% on Windows XP.
100% in most Linux distributions.
code: http://github.com/codexico/UTF-8-Chrome-Extension
Firefox Extension: https://addons.mozilla.org/firefox/addon/utf8-characters/
These are only a sample, it’s really hard for the device to render so many fonts!
They appear depending on the fonts installed on the system, if you want more you can try to download this fonts:
BabelStone Han http://www.babelstone.co.uk/Fonts/Han.html
Quivira http://www.quivira-font.com/
Deja Vu http://dejavu-fonts.org/wiki/Main_Page
Unicode Fonts for Ancient Scripts http://users.teilar.gr/~g1951d/
Code2000 http://www.fontspace.com/james-kass/code2000
WAZU JAPAN’s Gallery of Unicode Fonts http://www.wazu.jp/gallery/views/View_MPH2BDamase.html
All about utf: The Unicode Consortium http://www.unicode.org/