Well, he did write a few for khandu......

The Cow's Still Waiting at the Altar
I Want You (so baaad)
If You See Her, Say Moo
Absolutely Sweet Bossy

Tipping? Well.................some related I think......

Country Cowpie
Just Like A Tipper
License to Fall
Simple Tip of Fate
This Cow's on Fire (refer to previously linked website)
The Death of Emmett the Tipper

Many more...........

Spaw