Colorado Springs artist Sean O'Meallie managed to change deep-seated ideas about chairs in a single day. But it really took many months of hard work — planning, fundraising and chair-collecting — to bring the Manitou Chair Project to fruition. And it came off without a hitch last October, when about 700 chairs were lined up in a seemingly endless row down the middle of Manitou Avenue in Manitou Springs at dawn, though only a great deal of community input and volunteer work made it possible. The well-documented one-day event, kind of a downscale Christo installation by and for the people, also inspired a show of chair art at the sponsoring Business of Art Gallery in Manitou, and will live on as a marketing tool for the touristy town and artist enclave through a series of posters depicting the project's singular ripple in time.