Installation placement Ideas

In my Team of 2, me and Becky have looked at projecting our Video onto walls, ceilings, Windows and stairs, but they weren't quite the effect we wanted. What we have come up with is either projecting onto the floor so when people walk down the hall it will be the first thing they see, or to project it onto something that will distort its appearance, for example the dresses in reception or the side of a filing cabinet. We also could project the video installation in a corner too, because it would create a different atmosphere. Surround sound speakers would be a great idea because then you'd get the sound from the video, also you'd place the speakers either near the actual installation or behind where the people are standing so the sound will be coming from behind them.