I was so involved with my injury and my mushrooms yesterday that I only gave you one crappy picture of the finished terrarium. I thought you might like to see a little more. Or maybe you're over the whole terrarium thing already, and wish I would move on to something else. If that's the case, then come back next time and I promise I won't even say 'terrarium' once.
Looking down from the top, and here's a more clear side view:
I don't have any helpful hints for you, really. I got that jar at Ikea for $5, and bought a bag of pebbles at Michael's for $2.29. I used about a third of the pebbles in the bottom, then threw a handful of potting soil on top of that and just piled the moss in there. It broke apart a little as I handled it, it's fragile stuff, but I think it still looks okay, and maybe it will grow and cover any bare spots. As for finding moss, I'm also not sure what to tell you. I've always liked moss, so I tend to notice it when I go on walks. This was growing in the shade, mostly near rocks, and I just picked it right up. I had enough of everything left that I made myself another one, which I think I will take to work and keep on my desk.
This one is in a Weck canning jar that I found at a thrift store. I found two, actually. The other one has some of my favorite buttons and buckles in it, but this one was just waiting for a special use. Don't their jars make you want to can everything? I would love to get some and just can all Summer long. I have plenty of mason jars, though, so I'll just have to be happy with those for now.
I also did more than make terrariums this weekend, I also started a skirt for myself. I really hope it comes out as I envisioned. I think it just might. Here's a little sneak peak: