Take a piece of moss, with some soil still covering its roots, and carefully place it on top of the soil in your bottle. If the mouth of the bottle is too small to reach into, use tweezers, chop sticks, a Popsicle stick, or some other means (Reeko uses a well-behaved, specially trained ant who is very good at following directions) to lower the plant down into the bottle. Spray a bit of water on it – by now it’s probably pretty thirsty.You can collect moss from outside. Look for it in places that have just a little bit of sunlight shining on them. Dig up a small moss patch and place it inside a plastic bag or sealed plastic container so it does not dry out before you can plant it.