What would you do with a Laser??

Question

If you had one of these http://novalasers.com/ what would you do with it??

Answer 1

looking for a science fair or school project idea?
maybe take cash register thermal printer paper a long way away (across the auditorium?). then use a PC to control two servos or stepper motors to make the laser light move and 'write' on the thermal paper.
it could be a model of a very secure way to send messages...