Stumble Upon is an awesome tool! While stumbling, I came across this bottle garden from Design Sponge: Is this not cool? I looked over the directions--it does seem a bit fussy (cutting & sanding bottles, cutting screens) , but I'm guessing the initial work offsets how easy it is to grow these plants hydroponically. If you've got an afternoon or a weekend to devote to this, your busy schedule won't be interrupted during the week to stop and water your herbs. Seems cool. Anyone ever done anything similar? Share your experience with us--if it really does work, I'd love to try it!