As a long time member of an Int'l folkdance band, who has been involved with many music and dance encounters with young people--let me suggest that, if possible, you will do much better to find someone who is an Int'l folkdance leader that works with children and invite them to come and do a workshop with your kids(assuming that you are a teacher)--they will know what dances will work, they will have the music, and they will know how to teach the kids in a way that is engaging and fun.

It will be easier and less time consuming to do this, and be assured of a better outcome, if you get someone who knows the dances and the music to come in--and it will be a real cutural exchange, too--

Look in the community calendar of your local paper to find out when and where the local folkdancers meet for social dancing--then drop in, meet some people, and learn a few dances. You should be able to find out who is around and what they can do--

If you live in an area where there are large ethnic communities, there may even be a few folkloric dance performing ensembles associated with religious orcultural associations--often times, they have programs of various sorts that they offer--

Good luck!--let us know more about what you are doing, and how it turns out--