This collection of salt tectonics sandbox animation movies done by Giovanni Guglielmo, and available at UT Austin website, can be used to illustrate concepts and processes in a structural geology course. To access the animations, click on the 'animations' link in the menu on the right side of the web page.
The animations are excellent for illustrating that the path from undeformed strata to final cross section is highly dynamic and can include a world of unrealized intermediate geometries. For example, the animations 'Rising and falling diapirs' can be used to introduce the concepts, and 'Raft Tectonics - Kwanza Basin' to illustrate the possibilities.