Copper Earrings in Process

Here are some shots of the etching process I use to make earrings. Unfortunately I was in such a hurry bringing them to La Superette that I neglected to photograph the final product. No biggie, another batch is on its way for Etsy.
I've been having some issues with bubble in the "window" transparency sheets I've been using to expose the boards. I think I'll try straight up transparency sheets for the next round as adhesion doesn't really seem necessary to the process.
The bandsaw my studiomate, John, recently purchased has been a huge help in cutting these boards. It's hard to imagine I was previously used a dremel cut-off wheel. The bandsaw kicks up a lot less noxious dust and works much faster.