FLL Workshop

My team is organizing an FLL workshop, we are planning on having different engineers and technologists come to talk to the students about the engineering process. What are some possible hands-on activities that could be incorporated into the workshop?

One idea is to give the students toothpicks, cotton balls, 2 styrofoam cups, and a bit of masking tape, and they would need to create an egg holder that protects the egg from breaking after a 10 foot drop.