There are some free 3d software out on the net that is capable of mesh editing. Milkshake, I think, and some others; do a search. One of these will allow you to select and detach the items you want. If nothing else, select what you want, delete the rest, then save the remaining object on its own. Repeat as many times as it takes - you'll just have a lot of props. I have the fountain and so far the mesh seperates easily with very little selection editing.