Water wall Love this. Also like the idea of something that is changeable.more flexible. But using wood is appealing and the water stays against the "wall" so it has the thrill of movement w/o getting children very wet. That's appealing.
How to make a table terrarium: You might think you have no space for an indoor garden – but all you need is part of a table. Cacti and succulents are easy to look after, so they’re ideal if you don’t have much time or are often away. A collection of “cactus-scapes” creates drama, so have fun playing with different styles. Click to find out how to make your own.
Sand and Water Tables: Boxes in Boxes. I love this idea for sand because it creates a 3D experience that children can explore for an open ended experience when using a sand table. By reaching into boxes and poking heads in and around boxes, this creates an ultimate experience with sand by looking over and under boxes. This is also great for children's imaginations - they can even bring props into this sand table to create a story.