There's another "dance" I have been teaching, for some time, for this Play-party. I learned it at school and don't know it's origins. It goes:
Formation - Double circle with boys on inside. Start with couples holding hands, facing each other.

Verse
Girls turn and march counter-clockwise around circle. Boys turn and march clockwise.
Chorus
Everyone stop and hold both hands with nearest partner. Swing that partner for the whole of the chorus.

It's very simple but little kids love it. Joy