I've finally started to plant all my random succulents, air plants and ferns and its got me wanting another terrarium oh so bad. Not like I need it but that is completely besides the point. Have you ever tried growing small plants indoors? It can be a bit more tricky then growing outdoors but if you find the right plant for your home it will bloom forever. Now that we are in SF where its almost always humid and cold I am having huge success growing succulents indoors but my ferns aren't too happy. If you've never tried might I recommend trying out a few air plants... they only need a spritz every so often so even if you forget they will still be your friend.