We're Coco and Annie and we tried to figure out how to make the sound of 100 people marching. We collected a bunch of shoes and hung them on a broomstick. Then we bounced the shoes on a tabletop, like footsteps. Somehow it didn't sound right. Then we got the idea of using a computer to "multiply" the sound. We got pretty close making something that kind of sounded like a hundred people marching. Do you have any better ideas?