Original Guide: https://www.reddit.com/r/GlobalOffensiveTrade/comments/54so2e/discussion_unicode_nametags_name_your_weapons_in/
Anomalys Video about that:
https://www.youtube.com/watch?v=5Vm-qcQD5YY
You will need:

• Nametags
  
• A skin of your choice
  
• Web browser
  
• Ability to copy and paste text

Now we shall begin.

1.Think of a name you want to use in symbol/language of your choice!
When you got one, copy it and remember it for later use. For this tutorial I will be using the phrase: "宝石", which means gem.

2.Next, use GOOGLE to search the "converter" you are going to use in order to use these special characters in the name tag. For example, if you will be naming in Chinese, you will search on GOOGLE: "Chinese to Unicode converter".
After you go on the converter site, copy your phrase into the converter and it will spit out some unicode.
Keep in mind that because of CS:GO's nametag length, you will probably only be able to use 2 to 3 unicode characters :(
If you go over the limit, your name tag will be ♥♥♥♥♥♥ up and it will look weird.
Ok, copy the unicode and go back into CS:GO, and use it to name your weapon!
Once you verify its good, just confirm it and you're done!

Now... how do you get SYMBOLS? Very easy. Come to this site: http://unicode-table.com/en/ and find the symbol you like. For example I will be using the STAR symbol. Click on the symbol and copy the HTML-code (a.k.a HTML entity).
HTML-code: ★
Only the "★" is required, make sure you copy the semicolon.
Boom. Done. Ez. Put it on your name tag and done!
Some results: http://images.akamai.steamusercontent.com/ugc/264974290279851853/0044F61E82456C29479563F68EB0536276888F27/
In the HUD you can see the name.
If you enjoyed this tutorial please share it with your friends so they can have cool name tags too!
IT IS ALSO POSSIBLE TO USE A SYMBOL + WORDS! FOR EXAMPLE: 💎Black Pearl