Tabletop LASER Maze kit

Tabletop LASER projector is a STEM science workshop idea. I wanted to teach about light, reflection, refraction, and lasers, but make it hands on. So I printed 15 of the "LASER Holder complete Single", and about 120 of the stop signs. I glued 25mm (1") mirrors to the stop sign face to reflect the laser beam. On the holder, I purchased laser emitters and 9v to 3.5v power supplies (came with 9v battery connector) from amazon. I also purchased a fog machine to make the beams visible.