I had my graduation walk last week! =) Here's a photo of my graduation cap that I painted:
After the ceremony, my friends and family were able to find me because of the design. I painted an Art Nouveau portrait before it, and I looked at some Baroque and Rococo radial designs. Because radial designs are circular symmetry, you can look at it from whichever side.
I used a circle stencil and an oval-shaped stain glass for the linework. My next art tool to purchase is the french curve tool (shown down below) for longer arcs.