If you’re like us, you’ve put off having a child, pet, or plant because you can barely care for yourself. If so, the Mosser ($10) may be your best bet for live companionship that won’t cramp your style. This is an actual ball of moss that lives inside a small glass terrarium. All you have to do is spray it with some filtered water every two weeks. Doable, right? And while you may catch some flak for having a pet piece of moss, tell those naysayers that compared to pit bulls, moss kills 27% fewer people each year.