Mermaid gardens are not only the latest home dÃ©cor trend, but are the perfect solution for a creative way to display those seashells and sea glass that you collected during your Spring Break trip to the Florida Keys. Mermaid gardens are tiny themed terrariums, which are picture perfect and fun to create. Mermaid Gardens Are Going To Be Your New Favorite Home Please note: You are currently browsing img mermaid statue cast iron statue mermaid by that is 570x676px in size. This image is listed in mermaid garden decor category. Mermaid Gardens Are Going To Be Your New Favorite Home, 570x676 in 107.02 KB.