probably the most easiest and cheapest case to make. all you need is a plain transparent case, print out any pattern and cut it out to the shape of your case (don't forget the camera hole) simple and you can customize it to your liking!
Terrariums are great for plants that require moist, humid environments. Succulents don't usually prefer these types of conditions. Because succulents use their thick, fleshy leaves and stems to hold water, they don't need moist, humid conditions.