Yes, a couple, but I'm too shy to even sing in an empty house for fear a neighbor or someone outside might hear, so I don't know if I'm any good at the singing part.
Usually my mind gets started with lyrics when I see a phrase that looks cool or makes me think a lot. For example, there was a rumored Lady Gaga title "Someone Save Me Tonight" that inspired the only song I've written I consider a success, and afterwards I tinkered with it enough that it's become completely different and no longer even uses that phrase.