I have always been fascinated with Terrariums. It's like a little fantasy woodland. Here are some examples and links to blog articles about making one. I think I tried to do this years ago and it didn't work for me. Check out this Etsy shop, and this article on Design Sponge, this article on Decor 8, click here to go to Smith and Hawken for some cool terrariums. I know I saw some really cool ones a couple of months ago and now I can't find the site. Bummer.