Heart symbols on facebook:
❤ ❥ ♡ ♥ ღ ɞ
Facebook Flowers Symbol:
❀ ✿ ❁ ✾ ✽ ❃ ❋
Facebook Butterfly Symbols:
Butterfly symbol 01: Ƹ̴Ӂ̴Ʒ
Butterfly symbol 02: ƸӜƷ
Butterfly style 03: εїз
Facebook Music Symbols:
♪ ♫ ♩ ♬ ♭ ♮
Snowflake facebook symbols:
❇ ❈ ❅ ❄ ❆
More here.