Right! If nothing else this is a couple of hours of fun mucking around with optics and chemicals. What's not to like? This is the kind of stuff I would have lov

Right! If nothing else this is a couple of hours of fun mucking around with optics and chemicals. What's not to like? This is the kind of stuff I would have loved to try when I was a kid. Even now, if I had the ingredients lying around I'd probably give it a shot, who cares if the results are rubbish?