Air plants need no soil so are ideal plants to grow in a glass container which can be decorated with colored stones. Although I found this guide over at ebay and it includes links to places where you can purchase materials, the only reason I am publishing this is because the idea is so attractive. The article is from Garden Therapy which is a site that I keep an eye on for other interesting ideas.
You can read her article at Garden Therapy

I am a keen gardener and so created Garden Pics and Tips for people who love gardens and enjoy great pictures of plants and gardens. Also covered are practical tips on all aspects of gardening.