I find this kind of device utterly marvelous: Temporary Habitat [02] by Saranont Limpanont (NYT):
Because human is the most important factor in any habitats, habitats cannot illustrate their value If nobody utilizes it. The concept of this temporary habitat is to use human body as a part of its structure. If nobody is inside, this habitat would collapse and become just a junk. On the other hand, if we dwell in it and use our body as a part of its structure, this junk cardboard can provide a flexible personal space for us. Form and space of this habitat can be adjusted to many patterns depending on different activities.
