I decided to play with those colorful metal squares and rubbing plates. It was hard to figure out where to run the tool to make the impression, so it is not as clear as I would like. I guess like everything, it takes practice.
I like the bubbles best, even if they are not as clear. I thought to use them on a hanging for the Fiberaction challenge, but decided I need to plan with them more first.
Thanks to everyone who comments.