Specialty Gardening: Fairy Pond?, 0 by zhinu

zhinu wrote:
What I want to do is create a cover for the aquarium that will be turned into a fairy garden. I was thinking that I would do the cover in glued sand, with divets to put plants in, cover it in either air plants (like hen and chicks) or sod, and add a few taller plants in the divets. I want the cover to cover a pump for a water fall (which will sit on something like a 4x4) and a filter in case I want fish. Here are my very basic conceptual blueprint drawings for what I want to do.

For those of you who have more experience with this type thing. Is this doable? How solid is the glue/sand mix while wet, in other wards do I need to make a 3D mold or can I sculpt it like clay? Is there any problems that I missing?

TIA Laura