This 'nano toilet' won the Most Bizarre prize at The 49th International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication Bizarre/Beautiful Micrograph Contest.
This contest already took place in 2005, but this image is making the rounds again; maybe you haven't seen it yet, Nanowerk LLC reports.

Here are the price winners for the 2004 and 2007 contests' Most Bizzare category (the category wasn't available in 2006 but was brought back by popular demand in 2007):

2007 winner: Nanojogger sprints along 200nm pitch gratings after a contaminated high temperature anneal. Submitted by: Keith Morton, NSL, Princeton University.

2004 winner. Fishing with Nanotubes – These micro fish appear hooked on nanotubes with a catalyst bait. Submitted by: David Tanenbaum and Markus Brink (Pomona College).