The cake pans contain the plastic spoons that I use to hold my enamel powders for washing with distilled water and then mixing with a little enameling adhesive. They need to be protected from dust when I'm not using them and I found disposable aluminum cake pans with plastic lids are perfect for the job.
Here's a close up of the samples that I made for my enamel colors. They all are fired onto a copper base with the enamel color then applied either directly over the copper, over copper with a clear flux base, over white, directly over silver foil, over silver foil with clear flux base or over gold foil. The colors sometimes react to the metals in odd ways so it is good to make samples first to see what they will look like.
Soon I hope to post about how I torch fire the enamels...