https://www.techdirt.com/articles/20220127/11095248368/australia-pays-20-million-to-buy-copyright-aboriginal-flag-still-not-public-domain.shtml

Over a decade ago, we wrote about how Google had to edit out the Australian Aboriginal flag from a logo because of copyright concerns. An 11-year-old girl had won a contest to design a Google logo for Australia Day, and her logo included a simple drawing of the popular Aboriginal flag. Harold Thomas created a (fairly simple) flag design "as a symbol of unity and national identity" for the Aboriginal people in Australia. The flag became quite popular... and then Thomas basically became a copyright landlord, demanding payment for pretty much any usage.

In 2019, Thomas did a big licensing deal with a clothing company and proceeded to send out a bunch of cease-and-desist letters to others. It got so bad that the Australian Senate sought to have the government figure out a way to make sure the public could use the flag.