Years ago I served a church in the country near the Bentonville Battlefied. Just north of the Museum and Battleground were these silos --they are gone now. Fortunately I photographed them just weeks before they were torn down. I always saw the shapes of giraffes from the rusty doors and the pipes and motors. When I pointed them out to my kids or other people they said, "Oh yeah!"
The oil original is no longer available but reproductions on canvas will be coming soon. I believe they are about 24" square.