One of my property students send me the following email:

Dear Professor Czarnezki,
I heard an interesting piece on npr today regarding property rights. The Mardi Gras Indians are seeking to protect the profitability of their elaborate costuming, and "filing for copyright protection."
[Student Name]

We just read INS v. AP, and Cheney Brothers v. Doris Silk in class, so the students are interested in cases about folks trying to protect the fruits of their labor.