On display in the kids center they had charming terrariums created by old friends, Michelle Inciarrano and Katy Maslow, owners/creators of Twig Terrariums. I thought they were so clever, incorporating tiny figures into the plants and displaying them on the walls in these cool containers that lay flat against the wall. They've definitely made terrariums a popular item these days. They've done a great looking book called Tiny World Terrariums, A Step-By-Step Guide to Easily Contained Life.
Wouldn't you be smitten if someone sent you this little terrarium? (It's available at Twig Terrarium). Kudos to the guy that makes the guy in the terrarium look like him!
I like this shape better, but I don't think it would work, because the lid needs to be on the top:
I'll also need to look for some tiny Avengers characters...