Folding completely flat when not in use, Austrian artists Liddy Scheffknecht and Armin B. Wagner's Pop Up desk furniture is made from a 3 x 9 x 6.5' cardboard sheet. While fire safety and structural support may remain questionable, the idea that an instant mobile office that can be constructed from discarded office materials deserves a vigorous nod.
In Utrecht, Dutch designers Carmela Bogman and Rogier Martens have developed a set of trio pop up benches that can be pumped out of the pavement using a hydraulic system. Created from aluminum bench platforms resting atop three retractable posts, the heights of these pieces can be individually configured to lie flat at pavement level, stand at a maximum of thirty inches, or anywhere in between. Although tabletop hygiene may be an issue, this concept of urban-furniture-as-needed breaks new ground in public and play space flexibility.
From German design studio Rugwind comes the Guerilla Bench, an innocent-looking cable box that gracefully morphs into a street bench. Camouflaged as an unremarkable street object, it holds and unfolds into a comfy secret that only the neighborhood knows. (Do take a look at their well-crafted video here.)