I set up all of the items on random desks and put post-its with numbers on them. Then, the students did a museum walk. We discussed as a class what environment a museum should have and I played classical music as the students perused. Their goal was to guess as many of their classmates items as they could. It was a testament to the students that so many guesses were correct - it means that they listen to one another and respect each other. After the guessing, each student described several of their items, which revealed so much. I would encourage all teachers to do something similar - both the students and the teachers were able to learn so much about each other. Fun and productive - a classroom winner! (I especially loved the students who kept saying, "This is hard!")
One tip: Encourage students to not bring in any item that is automatically identifiable, like personal pictures, etc.
Enjoy some pictures of our museum walk: