you may check Helena Mitasova's and Bill Brown's web pages:
http://www2.gis.uiuc.edu:2280/modviz/
-> Chesapeake Bay
Nitrogen (4D)
-> Underground
Chemicals (4D)However, they will have to agree of course to use their illustrations.
Help yourself - in general I think anything on the web is fair game as
long as the source is referenced.
- Bill