Last night's experiments were actually to get an eye refracted inside a falling water droplet.
The best eye image I could find without going and printing one out was on a 'Memoirs of a Geisha' DVD.
Get the tap dripping, took about 5 minutes of fiddling with the tap and getting the drip rate just right so I could take approx 1 pic every 3 seconds.
Setup the camera on a tripod pointing at the droplet as close as I could get it. Ended up somewhere between 1:1 and 1:2 on the scale.
Focusing.. This bit is really difficult as you are focusing on the refracted image inside the droplet. You cant see it while you are watching so I turned on live view, zoomed up to the drops then put a fine wire across where the tap was dripping and then focused on the wire. (It's easier with stationary drops but who wants easy?)
I dont think I got it quite right but focusing at this level is so fine.. anything can make it go slightly fuzzy.
Tape DVD cover to a plastic board behind the tap upside down and line up with the camera. Set camera to 2sec exposure, F8 and remote release. Forget to turn the auto focus off so camera tries to autofocus first time I hit the button with a test shot and have to go back to step 3 and refocus the whole thing again!
Take 50 or so pictures, hit release, hit flash just as droplet looks like it's going to drop, repeat.
Take pictures off to the computer and see if you have anything good :).
I ended up having to cover half the wall with black material because the droplet refracts SO much around your image, even with it only 10-15cm away from the drop.
This was probabily the best shot out of 180 or so. Might try again tonight and see if I can get it clearer.