Lava lamps are the latest addition to the world of lamps, contributing to the beautification of the home décor. Lava lamps are available in various bright and fluorescent colors and impart a distinct glamour to the room. These lamps can change color, which in turn changes the effect and shadow play, within the room. Throughout the decades there have been several styles of lava lamps; while most work in the same manner, the external design is what has altered most. Lava lamps can be broken down into three basic types: countertop, wall sconce and floor model. Shapes of the globe have also differed, from a triangular shape to a tall cylinder. Design changes to the base have included creating a flower ring for added decoration, novelty bases such as an Aladdin-style lamp and cartoon characters, and even a traditional-looking lantern. Lava lamps are easy to take care of, but it is important not to shake the globe while the blobs are warm. Too much shaking can result in a cloudy substance that may be irreversible.