Good idea for multiple reasons: 1) equisetum grows so quickly and make even the newest newbie of a gardener feel accomplished and happy, 2) equisetum can get out of control and this container will prevent that from happening, 3) creates privacy and covers up some unsightly areas
Get some underwater plants from a pet store, some large inexpensive vases and voila, you have an adorable (low maintenance!) house plant. I really love this idea for a desk plant at work. For added fun, get a plant that will flower!