A terrarium is basically a miniature landscape with tiny plants and often small animals, like lizards. I opted to plant a desert garden minus the creatures. The little drift wood, plastic deer and rock painted with yellow flowers were in the terrarium when I got it, leftover from my husband's childhood. He has such fond memories of peeking into this miniscule world (much like this girl) and really wanted to share that fun with our girls.
There are lots of fantastic websites devoted to building your own terrarium out of whiskey bottles and other recycled objects. I have to admit, it was fun to landscape on such a miniature scale and I love bringing the outside world inside with something a bit more unusual than potted plants (which we already have plenty of). Plus, again, doesn't it compliment my chairs so well?