Youtube recommended this one to me just now, and I don't recall seeing it around here before:
https://www.youtube.com/watch?v=k8mupSxHucw

The title says it best

Great find - I love his introduction!

I named my guitar Betty. (seafoam green Epiphone Dot)

-Callie

Yeah, I thought that bit was brilliant, and the deadpan delivery was just priceless! It's just such a very 'guitar player' thing, you know. I mean, you're never going to hear a piano player go "And here's my Steinway, II call it Stella"!

Google assures me that Adam Young (Owl City) named his piano Audrey.

And if it's on the internet, in must be true.