I was hoping to make a great hands on optics experience this semester for my small (9) class of 11th and 12th grade (high school) students. My own experience was a bunch of ray diagrams and I would like that to not be the only thing going on here. This course is the only physics course at our school and consists of all honors students. Things considered in the realm of engineering/design are welcome, they really respond when we do Science Olympiad events in class. Specific Questions: What kind of laser should I buy? What are some fun optics activities that have worked for others in the past? What hasn't worked well for others? Thanks for any input.