Just the thing for your standard dismal cafeteria with no windows: Real grass, albeit no longer alive. The grass grows not on soil but on various materials '€“ using water, light and the power of the seeds only. The roots intertwine and form a joint area that, with the aid of the special technique of drying, will stick even on stainless steel. The grass is conserved through the process of drying only....
Source: TreeHugger