This is how we used to sing it in Brownies / Girl Guides circa 1995 in Ottawa, Canada:

Chorus (sung first, and after every verse):

Magalena Hagalena Ookatalka Walkatalka
Okamokapoka was her name, her name.

Verses:

She had two hairs on the top of her head,
One was alive and the other was dead.

She had two eyes in the middle of her head,
One was green and the other was red.

She had two teeth in the middle of her mouth,
One pointed north and the other pointed south.

She had two knees in the middle of her legs,
One liked bacon and the other liked eggs.

(Sung slowly) She had two feet size forty-four and a half...
(Sung normally)One took a shower and the other took a bath.

(Sung slowly) A ten ton truck hit poor Magalena...
(Sung normally)The old truck driver had to buy a new machine-a.