Using some garage organization panels, I applied a stencil I created in Adobe Illustrator based on the insignia on the banner outside of Savi's Workshop in Star Wars Galaxy's Edge. I used a base coat of spraypaint in my desired color to apply the base color. I then used a variety of acrylic colors to apply weathering and rusty/dirty distressed textures to the edges of the insignia and around the panel itself.
I 3D printed a handful of greeblies to apply to the panel and used a jewelers file to chip away some of the paint to further distress the panel.