It would be nice if you could show some special/strange/sophisticated setups you have been using including Nikon equipment of course.
To start, I am including a link to a thread in the macro forum: I think we have a winner. What that person did is just incredible: just have a look at his site (link in this thread): after publishing his method and tooling a few days ago he got 180.000 hits on his personal website !!!!
I am mentioning this because he is using a Nikon. It is amazing to see what you can do with some (a lot of) creativity...
totally incredible.