Looking for a post-processing compositor effect

[fantasian]

Hi,

Our game is pretty much finished - released actually - and we are adding bells-n-whistles at this point.

We would like to add a compositor post-processing effect as a final touch. The standard Bloom, Sharpen, Motion Blur are all good, but we were hoping for something a bit more eye-catching (possibly added on top of the others mentioned). If there are custom compositors out there that produce any kind of interesting effect, we would be glad to consider to buy, rent or borrow.

Here are some references below we think are interesting. Of course, most of these effects are material-based, not post-processing-based, but give a general idea.
[youtube]gbfKiXyyCOQ[/youtube]
[youtube]PtO3fWB4qE4[/youtube]
[youtube]f5L3E9CPbYM[/youtube]
[youtube]PXh0-JPPNSY[/youtube]

Thanks and happy new year!