Mine is the chorus of a song called "Wow, I Can Get Sexual Too" by Say Anything. I originally did it for laughs but I like it.... Except, when I went to the post office and I was surrounded by older people and it rang off... they frowned at me. lol.
For calls mine is the chorus to "Home" by Lynyrd Skynyrd and texts it is the beginning of the Steelers "Here we go" song for football season. It's usually the chorus to ''Simple Man" by Lynyrd Skynyrd. For voicemails and multimedia messages I just use the generic rings that came on my phone.
I make my own ringtones using my music collection and Audacity.