Brownie Smile
(source: "Sing A Song For Sixes", Girl Guides of Canada, 1975)

There's something in my pocket
That belongs across my face.
I keep it very close to me,
In a most convenient place.
I bet you'll never guess it
If you guess a long long while,
So I'll take it out and put it on.
It's a great big Brownie smile!