design idea - lif(t)able

I have a sideboard that things regularly fall down the back of and I'd love to be able to clean under it once a year without having to lift all the contents out to move it, so I've been toying with the idea of furniture with pistons in each corner.  By fitting a tyre pump to a hidden port I could pump the sideboard up high enough to get a vacuum cleaner under it, without worrrying about the contents falling over.  Once finished a simple valve release would allow the cabinet to gently fall back to the floor.  If I didn't want to make it part of the aesthetic, I'd just put a cover on the port and no one would be any the wiser about how much more useable the piece of furniture was.