https://www.bustle.com/articles/92345-the-jazz-cup-design-by-gina-ekiss-has-an-unexpectedly-rich-history-so-here-are-8
Even if the phrase "jazz cup" isn't familiar to you, the design likely is. You may just have to go back in time to remember it. You might've seen the purple...
jazz cupgina ekissdesignunexpectedly