Do you have a plan before you get started? I sometimes do when I sit to do a blog post, but often it unfolds as I move into the task. Scrolling through our photos two rainbows caught my eye; both rainbows were on trivets by Margaret. The thing is that the top project was intentional. Clearly Margaret carefully chose colors ROYGBV.
Below the intention was a Log Cabin Square of violets and Purples, but iridized glass takes it out into the land of rainbows.
Margaret has a section on her etsy shop dedicated to trivets. These two have sold, but maybe some others contain rainbows as well. View them here.