I love this terrarium I bought on sale at Pottery Barn last year. Even though they don't carry them in the store anymore, you could use any glass vessel with an opening on top. Per Carey's request I did not show dirt this time :)
How to do it:
1. Chose three small plants (or however many fit nicely in your glass vessel) that enjoy a little humidity and in this case low light (my dining room isn't the brightest room in the house).
2. Placed the three plants close together inside the terrarium leaving a one inch space between the dirt and the exterior.
3. Carefully placed polished pebbles around the edge, filling in all available space.
It's so easy to do. The most difficult part of this project is finding the perfect glass container. But once you have that down, you can reuse the terrarium season after season and do something different each time.
If you want to make a terrarium for your kids' rooms, click here to read this fabulous post over at Cookie Mag's website. When my kids are a little older this will be a fun project. I can't imagine what L. would do with a little dirt and a considerable amount of rocks in his room. A scary thought indeed.
Note: Even though the website and the current catalogs do not offer this for sale, it does not mean they don't have a couple on hand at the warehouse. Call the catalog phone number and ask them if they have any "glass terrariums" left. Regular price was $66 approximately and I purchased it on sale for $34.99. Hope that helps! You might be able to find it even cheaper...who knows?!