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To Dec. 4

Your parents always told you not to play with your food. But did they say you couldn’t play with the cans? I think not. Thus we have “CANstruction,” an opportunity for architects and engineers to design whimsical and geekily pun-laden structures from cans and boxes of groceries. (It’s all for charity; the frivolity benefits the Capital Area Food Bank.) Among the agglomerations are a sinking “Ticanic”; an Oz-scape featuring the Tin Man (duh); and a miniature “Canden Yards,” where the “fields of greens” are made of cans of collards and green beans. Extra yuks for the builders of a faux Y2K fallout shelter: The shelter’s toilet, complete with a working seat, was constructed from cans of B&M baked beans. In all, it’s a celebration America’s can-do spirit. On view from X a.m. to X p.m. XXXday to XXXday, to Thursday, Dec. 4, at the Columbia Square Office Building Atrium, 13th and F Streets, NW. Free (donations of cans strongly suggested). (202) 667-1798. (Louis Jacobson)