I was actually thinking about it myself. I made an idea to take the built model and mount it on your dio base. After that get some very fine earth-toned powder-a lot of it. Also get a display case that goes totally around the dio base and it can't have a lid on the top. You'd also need some clear acylic stuff-almost like future, but an acrylic material made to be see-through and poured into a contaner. THIS WOULD TAKE A LOT OF TIME!!! pour a little layer of the acylic stuff and sprinkle some of that fine earth dust in it. keep going up the dio, layering in very thin layers as you go, sprinkling fine powder in all the time. After doing this, it'll mean you can never get your tank back again, and the whole dio would be a cube of acrylic, but it might work. I've never done it, just kept thinking about it untill I came of with something possible...