I first added dirt to the bottle. Then I ripped off chunks of moss, compressed them and shoved them through the wine bottle’s neck with a chop stick leftover from a previous takeout. A few pokes and prods later, I had them all lined up.
After a matter of time with some light and careful watering, the moss grew together into a pretty neat miniature landscape. THe results work best with a lighter-tinted or even clear wine bottle, but moss and similar plants can grow pretty reliably in dim light. If you have another creative idea for adding some greenery to your desk, sounds off in the comments below.