[Callers] Grand Marches and ONS

Hi, I'm doing an ONS on a Sunday afternoon for a church group. There will be 4, 5, 6th graders, with some contra dance experience, and adults, some old, with none. The room has two ROWS of columns, but there is room at the sides and between the rows of columns. I am thinking of doing a Grand March to start, to get everyone involved. I have done this several times with Dudley, all more that twenty years ago, and don't remember how to start them. Mostly I remember Dudley pointing alternately left and right, very cool, as we went from marching in two's to marching in four's, eight's and so forth. Any ideas for what else to do? I'll probably do a circle mixer next. It would be fun to somehow end the grand march so everyone was in the circle. How might you do that? And of course, any great ONS dances would be great to have. Thanks, Rickey Holt.