Somehow a cute little tempered glass set-up or sauce bowl got stuck in an equally cute small mug. Neither are costly, but they are among my favourite dishes. (Pretty much impossible to find coffee or tea mugs that aren't grotesquely large in North America, these days). The wee bowl is tempered glass; the mug is porcelain. I tried pouring in a bit of oil. I can flip the wee bowl any way, but I can't ease it out.