I knew this one as:
We three kings of Orient are,
One in a taxi, one in a car,
One on a scooter,
Beeping his hooter,
Smoking a fat cigar.
Ohh, star of wonder, star of night,
Jesus caught his arse alight
/and it never really went any further
(
Mr Gimpson Wolfguts,
Wed 9 Nov 2005, 17:42,
archived)