Willoughby Wallaby Woo

Willoughby Wallaby Woo Willoughby
wallaby wee, an elephant sat on me
Willoughby wallaby you, an elephant sat on you.
Willoughby wallaby Wustin, an elephant sat on Justin.
Willoughby wallaby Wania, an elephant sat on Tania

(And so on using other names and some sing-a-long fun.)