I think this should be called the "mood mug" so that you can leave whatever sentiment fits your mood or day. You could be like "hands off" or leave your favorite curse word... possibilities are endless. Stock up on chalk too.
Doesn’t matter what your hot beverage of choice is, the everyday mug has now turned into a mode of communication. This ingenious mug is glazed with a chalk board surface allowing for easy-wipe messaging with a standard piece of chalk.