I like both ideas. If I had to choose, I’d choose the Grand Canyon one to show your personality outside of law. Try to throw in a few sentences about your moot court experience if you can pull it off.
To Yale Adcomms perusing this site: JK! Yale is the be all and end all of legal scholarship! You take lumps of wet clay and turn them into Supreme court justices and leaders of the free world! Please don't ding me!