I've been thinking about doing this with giant pretzel containers. Maybe with thyme, sage and rosemary? Maybe with some of my indoor plants? Lava rock, charcoal, decorative sands then potting soil. Very pretty pictures at the website and more details. How to create your very own terrarium
Mini Wine Cork Planters for Succulents. Carefully shell out the middle of a cork using a pointy knife. Loosely place a little soil mixture for succulent plants then add one tiny succulent per cork planter. Corks do not decompose quickly so you can safely water your plants as necessary.