This is a mug that I painted with every Mason stain I have, to see how they would work when highfired.
The colors hold up awesomely, but then, Mason stains are designed to hold their colors from cone 01 to cone 11!
I love using them!
My friend told me that when they opened the highfire kiln, everyone wanted my test pieces. She said that she was surprised that they were still here when I came to get my stuff a day after the kiln was opened.