I don’t suppose this is what people normally mean when they say “cheer in a bottle”, but I find these little bottle lights to be immensely cheerful. They fit into any standard sort of bottle, and RECHARGE by plugging into a USB port. How cool is that? All sorts of ideas are in my head: a nightlight in a guest bathroom, a nice little light display in a dim corner of a media room, kitchen, bedroom, whatever. If you are a lover of glass bottles, this makes them beautiful in the dark as well. Woohoo.