Expanding the idea of tube for connecting in and out, I thought about old technique, the camera obscura (암상자), means dark chamber. It consists of a room with a small hole in one side for the light from an external scene passes through and strikes a surface inside, where it is reproduced with upside-down. Also, the color and perspective are preserved.
Another idea is the projection mapping. Rather using modern technique of mapping, i would like to use camera obscura to project image onto the object. It is a collaboration of camera obscura and projection mapping.

