This is a must have for dry hotel rooms! The Casamista humidifier, designed for Umbra, screws onto any standard water bottle, and with the help of batteries or power via a USB outlet, feeds water into a tiny pinhole that generates mist for a dry and air conditioned room.
via http://www.fastcodesign.com/3016747/wanted/an-adorable-travel-humidifier-shaped-like-a-house