After I made the tile out of clay, I realized that wasn't a practical idea. So.... now I'm asking all my clay friends for any ^6 glaze that's the blue/green of the sea near Cozumel (photo below).
This design will go on the wall above the end of my whirlpool tub. There's no water hitting this wall, so I don't have to worry about waterproofing.
The tiles made by pressing my thumbs into the clay (see photo below) will go on the wall behind the stove. I want something that's easy to clean and will be decorative in that little space. I'm thinking along the lines of something iridescent for a glaze.