Terrariums seem trendy right now. What are they?
Terrariums are glass containers containing soil and plants. Some are sealed, some are open to the atmosphere.
I received the one above as a birthday gift from friends. Here is where you can buy the same one for yourself if you live in SF.
Other terrariums if you don't live in SF. Note: some of these are just the containers, so you will get to build your own!