I can think of several but can't remember the details of the steps of any of them, so this will only be any use if someone else knows them!
1. The Bear Dance has a funny routine that you can do to it, which entails tapping various parts of your anatomy on the floor (finishing with the bottom, which children find hilarious).
2. There's a dance with a similar formation to Dashing White Sergeant, called the Big Three. Both of these are good because they can have 2+1 of either gender.
3. A square dance to the tune of "I want to be near you" (aka Aupres de ma Blonde). The kids can sing the chorus as, "I want a banana/With a yellow, yellow skin/I want a banana/With a yellow skin" which also goes down well, particularly if they're allowed to caper like monkeys.

Can anyone fill in the details of these?

Marje