nice characters you can use e.g. on Twitter

♥ ☺ ✿ ☻ ♞ ☹ ✩ ☠ ★

♺ ♨ ✌ ❁ ✏ ❀ ☚ ✾ ☯ ☝

✽ ☪ ❦ ♂ ✝ ☟ ✺ ✍ ✵ ☛