Unicode

🦄	U+1F984	Unicorn head
─	U+2500	Box drawing
━	U+2501
═	U+2550
	U+2007	Figure space

Misc

Wikipedia: Unicode Box-drawing character

Wikipedia: Unicode Emoticons

Wikipedia: Supplemental Symbols and Pictographs

Wikipedia: Miscellaneous Symbols and Pictographs

Abusing Unicode

What's up with these Unicode combining characters and how can we filter them?

How can those characters make this effect? - More vertical crap

How does Zalgo text work? - H̡̫̤̤̣͉̤ͭ̓̓̇͗̎̀ơ̯̗̱̘̮͒̄̀̈ͤ̀͡w͓̲͙͖̥͉̹͋ͬ̊ͦ̂̀̚ ͎͉͖̌ͯͅͅd̳̘̿̃̔̏ͣ͂̉̕ŏ̖̙͋ͤ̊͗̓͟͜e͈͕̯̮̙̣͓͌ͭ̍̐̃͒s͙͔̺͇̗̱̿̊̇͞ ̸̤͓̞̱̫ͩͩ͑̋̀ͮͥͦ̊Z̆̊͊҉҉̠̱̦̩͕ą̟̹͈̺̹̋̅ͯĺ̡̘̹̻̩̩͋͘g̪͚͗ͬ͒o̢̖͇̬͍͇͓̔͋͊̓ ̢͈͙͂ͣ̏̿͐͂ͯ͠t̛͓̖̻̲ͤ̈ͣ͝e͋̄ͬ̽͜҉͚̭͇ͅx͎̬̠͇̌ͤ̓̂̓͐͐́͋͡ț̗̹̝̄̌̀ͧͩ̕͢ ̮̗̩̳̱̾w͎̭̤͍͇̰̄͗ͭ̃͗ͮ̐o̢̯̻̰̼͕̾ͣͬ̽̔̍͟ͅr̢̪͙͍̠̀ͅǩ̵̶̗̮̮ͪ́?̙͉̥̬͙̟̮͕ͤ̌͗ͩ̕͡

diacriticism

Blackletter - Unicode Abuse - 𝔗𝔥𝔦𝔰 𝔦𝔰 𝔞 𝔱𝔢𝔰𝔱.

Also... - 𝓑𝓮𝓱𝓸𝓵𝓭 𝓽𝓱𝓲𝓼 𝓯𝓪𝓷𝓬𝓲𝓵𝔂 𝓮𝓷𝓬𝓸𝓭𝓮𝓭 𝓽𝓮𝔁𝓽. ʙᴇʜᴏʟᴅ ᴛʜɪꜱ ꜰᴀɴᴄɪʟy ᴇɴᴄᴏᴅᴇᴅ ᴛᴇxᴛ.

Emoji in windows osx