Well, I sometimes (often) sing my recorded messages.  In December (in Portland, OR), I sing:

I'm dashing through the snow
Or sloshing through the rain.
At any rate, I missed your call,
So please call back again.
But I might call you first,
If you'll just tell me how,
So leave a number at the tone,
And "Ho! Ho! Ho!" for now.
 

and in March, it's:

"Me Irish eyes ain't smiling,
Because I missed yer call.
I may be in the tub or fast asleep
Or not home at all,
But if ye'll leave a wee message
At the beep of my machine,
I promise I'll return yer call
Or me Irish eyes ain't green."
 

Genie

PS,
You real Irish folk, yes, I know that's not a parody of a true Irish song.  But I'm a Yank (albeit with a lot of Irish ancestors).