Mr. Richey at Rogers and Strawberry Vale schools started a contest and posted a bulletin board (see full image here. For several weeks students submitted levidromes and Mr. Richey posted them on this board. After several weeks of collecting levidromes, Mr. Richey tallied up all the submissions and awarded a prize to the student in each school who came up with the most levidromes.
Mr. Richey posted a tweet of his board on February 19, 2018.
William Shatner saw the tweet, and responded with his own tweet stating that it would be a wonderful challenge to other classrooms to do the same.