I love to display jewelry in non traditional ways at our shop Citrine and at home. I also have a terrarium fetish and hang my jewels on their glass rims (above).
Glass cylinders about the diameter of a dessert plate work really well. These will look lovely on your dressers or wherever you find yourself taking your earrings off. I layered three different sands and added little things I love like geodes or sea urchins. I recommend this link for beautiful sands: Artemisia