An apparatus having an exterior surface that simulates a natural surface, and method of manufacturing same, comprising a polymer-foam sidewall having a concave first surface, a first end, and a second end. According to one embodiment in which the apparatus is a hunting blind, the sidewall is generally cylindrical and further has an inner surface, and defines a plurality of windows extending between the inner and outer surfaces. A first endwall is adjacent to the first end of the sidewall. A second endwall is adjacent to the second end of the sidewall. The sidewall, first end wall, and second endwall define an interior space that may be occupied by a hunter.
