At LEGO World I've met a really nice guy who had make a very interesting MOC. It's called Project Waterloo and you can read all about it his blog (only for the Dutchies). He was able to put injection needles inside the minifigs to make the working fountains. Also he did paint all the soldiers by hand.
Here's a picture I made at LEGO World last Sunday:
Some more pics I've found on the creators blog: