(vimeo link) A Dutch art duo by the name of Mr. Beam created a white room to project colors, patterns, and textures upon. Two projectors produce the changes in the walls, carpet, and furniture. Link -via reddit...

(YouTube link) Shine a laser through a drop of water and you can project the image of its flora and fauna on your wall or ceiling. Really. The cat sure enjoyed it! After witnessing the image of a mosquito in a laser...