Look through the Google Earth layers in the primary database or search online for other x.kml and x.kmz files and find an interesting use of a geometric object (e.g. arrow, line, etc.) that you could possible use for your project. Be prepared to explain:
1. …why you liked it.
2. …how you will use it to get a point across about your project.
3. …what code (<parent>, <child> tags) was used to create the object.
4. ..how you will have to change the code to meet your specifications.