pottery mug rainbow glaze, handmade ceramic mug which one?:a I threw the mug on

I threw the mug on the wheel out of stoneware clay

pressed fern leaves from my yard into the still-wet clay

dipped into a blue glaze

approx 5 inches wide including handle

I threw each on the wheel out of a stoneware clay

pottery mug rainbow glaze, handmade ceramic mug which one?:a I threw the mug onEach handmade pottery mug is microwave and dishwasher safe. I threw these coffee mugs on the wheel out of stoneware clay, pulled the handles, fired them in the kiln, glazed with a single glaze on the inside and several glazes on the outside, and fired them again to 2232F. The glaze is food safe, and even un glazed portions are non porous. I sanded the bottoms so they are smooth. This glaze combination was tested for thermal shock typically encountered