My general ringtone is the opening theme from Goonies.
For specific people I have "Kyle's mom is a *****" edited to remove "kyle's mom", the theme song to the 90's Teenage Mutant Ninja Turtles cartoon, the Mortal Kombat song, and "Oh Yeah" from Ferris Beuler (I have no idea what the song is actually called).
For texts, email, facebook messenger etc. I have a variety of sounds from Zelda and Mario games. For voicemail I have Jay (as in Jay and Silent Bob).