Oh my I need this it looks like the ocean. How awesome would that be in a garden. Succulent border - Massed Echeveria elegans with pots of what looks like Echeveria ' Perle von Nurnberg' Maybe use dark mondo grass for the contrasting plants?
Succulent tree trunk - instructions are not in English but the idea is pretty basic. Tree trunk + removal of some wood + soil, water & succulents = awesomeness in your garden! You could even hang this from a patio at eye height.