Sugestion for "puzzle" screensaver

I've been looking (unsuccessfully) for the following screensaver
which I thing will be easy to put together based on Novel Puzzle game:
a custom pucture is loaded, scrampled and then shown, slowly unscrambled.
Would be funny to watch to guess which picture (out of set of selected pictures)
is being shown. After the picture is fully "assembled", the next one is processed,
and so on.
Should be popular...

That seems to be a good idea. But we are game developers and our primary job is to produce games, so it is not likely that we will create this screensaver