Review on QSHAVE Shaving Scuttle Mug - Handmade Pottery Cup in Large Deep Size Bowl for Warm Lather Retention (Black) by Kim Fukushima

Updated 9/11/2018: Request a refund with it doesn't match Description doesn't keep warm as promised and the There's a plastic plug in there. See photo. Updated 5/9/2018: It comes with a plastic stopper, not the advertised stopper. Now the plastic stopper is inside the cup. The cup does not retain heat well. The ability to add water to keep warm is a neat idea, but falls short in practice. The material the mug is made of does not retain heat. Adding hot water while there is foam in the bowl is inconvenient; the foam is washed off. It's good to have a foam cup, but it would be nice if it stayed warm.