With "Your Welcome Mat" by designer Jeni Rodger, the swappable letters make for endless fun. I mean, you don't even need to "welcome" people anymore. You could be like, "yo, sup" instead. And then your in-laws would know that you aren't just some beast that can be tamed, groomed and shoved in a clean pair of underwear. You despise clean underwear—which is just more fodder for the mat.