I wanted to make some “Anarchy” earrings and I wanted them to be “rough” looking to match the typical stylized “A”:
I imported a 2D image to get the outline and then created a randomly bumpy surface on top and bottom. An inch in diameter, they were 3D printed by Shapeways in sterling silver. I ordered two of them with slightly different finishes to compare the results:
I used a simple plugin that creates a pseudo-random mesh of triangles. I Push/Pulled the 2D outline to create the thickness and then intersected it with the mesh: