Make sure you have the lens oriented correctly because it appears the Christmas balls are not quite round. This sometimes happens if the Anamorphic is ever-so-ever slightly off from vertical.
TRUE!
Interesting note: The Pentax Kx has a weird mode (it's not 16:9...i think it's 3:2?) Anyway...I've wondered what that would look like? I suppose it would just "desquash" to 16:9.
I agree that it is fun though...