I found an old overhead projector in a skip yesterday and made it into a lightbox with a piece of white perspex which I also found in a skip a while back:
Very useful for transferring patterns onto metal for engraving.
I've posted a link on the left to my friend Jeff's website. There are plenty of pictures of his work on the website. My friend and associate in the US, Laurie, sent me a link to another glass artist Andy Paiko, which I found very interesting.