Rocks are out... Now how to get them back. I had a counter top cleared off with numbers ranging from 1 to 150 (the amount of rocks that I was collecting). After repeating my due date to staff several time, and placing it on the announcements, I received about 1/3 of the rocks on the first day. I expected this. When doing a large activity like this I always allow 'late' time. The next day I had a few more. I put out my hard due date to staff and received MOST of them by my 'true' anticipated time. As the rocks were trickling in, it was nice to have a designated space for the rocks to go. I would highly recommend coming up with a plan for collecting the rocks when doing this project with a large group.