Just because you're a feminist doesn't mean you don't have a sense of humor. And just because you have a sense of humor doesn't mean you mind being a total feminist killjoy from time to time. Show it off with this "feminist killjoy" coffee mug. Our vintage reproduction enamel mugs are made from a thick enamel-coated steel. They are heavy (for enamel mugs- still lighter than ceramic), smooth, wonderful to drink from, and crazy sturdy.