Go here and Ctrl-C / Ctrl-V

I especially like ⨹

H̢̱̀e͖ͧ͘r͈̔́e̖̅̀ͅ ḩ͒͏̩̲ẹ̽ͯ̀ c̔͑͠҉̬o̢̢̠̜̓̚m̷̻̳ͧͪ͘ę̢̥̋̀s̢͈̲ͧ̀͜ͅ,̧̔͞ͅ f͖͗̿̕͝ȅ̴̶̩̂͟a̸̡̯͈̼͋͡s̗̋̀̀̀̀͟t̒̾͏̯ y̸̛̟̽̇o̢̟̜͂͆ͯ͘͜u̧̧̜͔͇ͭͫ́̚͞r̀̃͑̓͒͏̮ e̍̒̇ͯ҉̴̲̭y̷̰̖ͨ̑͜e̓ͭͭ͂̕҉̸̛̦̱̤̫͢s̡̛̫͋̕ o̢͉̘͚̤̅ͫͤ̓ͭ̕͡n͊͘҉̲̟̖͔͝͞ t̷̟͊̽h̨̦͎̅̄ͪ́̚͘͠i̶̢̛̬̞̦͊̅̏̀́s̶̸̢̹̹͕̩̜̣̎ͫͤ͐̈̀.̛̰̼̗̺̼͗ͣ̏́̚͟͠.̵̪ͥ̈̚̚͞ͅ.̷̶͎̞̳̘̈͋ͬ̈͂͒͠ z̸̛̫̓͜͟͡ḁ̧ͨ͊͗ͫͫ̅́͢͠͠l̵̴͒͏͚̥̻g̩͎̲̼̠̿̅ͩ͌̇͟o̢̝͍͔͍̼̼ͤͦ̎́͘͝ i̷ͧ̅̂͟͡͠͞҉̸̙̱͍͈̝̠̺̀ͅs̗̮͇̪̯̋͋́̕ t̵̶̛̰̘̰̫̬͖̜͗̒͗̉̿͌̀̀͢ẖ̴̴̡̭̪̉̌̈́͗͘e̵ͬ̃ͬ͌͆̍͏̧̡̧̦̘͇͕͙̳̹͜ ạ̳̺͎̤̺̖̠̔̈ͮ̉̌̓̀́͟͢͞͞n̊͏̰̖̘̖̭̰̖̕͢ş̴̽͘҉̮̞̼̱w̨̢̠̻͐̐͑̊͢͞e̢̡̛͖̙̟̣͋͆͘̕ͅŗ̧̯ͪ͘͘͜͡.̭̘͇͓̹̻̖̖͉͊ͪ́

On PC, you can hold Alt and press a number combination, like 1 or 257, to get an ASCII smiley. Not Unicode, but hey, it's something