K.K.
Maybe you could do a rhyme? Like:
Lordy Lordy,
Look who is turning 40!
Though he thinks he's young,
Just look at that tongue!
To celebrate we're going to eat Tex-Mex.
But with this economy, you'll have to pay your own checks!
It's a surprise; come car, train, or bike,
And show the "old man" how much he is liked!