Normann Copenhagen teases out the options with the Ding Table. German design trio Ding3000 created their self-named table inspired by 3-dimensional wooden brain-teaser puzzles. The interlocking legs fit ingeniously together without any screws, meaning no tools are needed for assembly. Topped with a round of either transparent or smoked glass, the emphasis is on the mind-bending oak base. "Our intention is to draw attention to this almost magical detail," say the designers.