I am making these designs into gifts for my gradation(coaster and keychain). I used my school colors for the colors in the designs. I ended up going with a 80s theme for the overall design. I had thought about going with a 20s style theme to mimic the look of "The Great Gatsby". I thought it was kind of a cool idea to do a 1920s theme a century later. However, I took a poll on my Instagram and many people had voted for 80s. So, I listened to the trend of what people enjoy I created these.
I followed this tutorial if you are interested in creating this design for yourself. https://www.youtube.com/watch?v=y8brTm5aslo