The idea of modifying Canadian flags to protest environmental damage from oil has been done before, though perhaps not as colorfully.
“A Canadian flag is displayed with artwork of oil drops on it during a protest against the Enbridge Northern Gateway Pipeline in Vancouver, B.C., on Saturday May 10, 2014. (Darryl Dyck / THE CANADIAN PRESS)”The “Canadian Oil Flag” (image from valuewalk.com, November 10, 2013).