A few years ago I restored a 70 year old Armstrong Moth frame. I didn't do much to the paint, just touched up the black paint that was on it (not original) and recreated graphics based on photos of similar bikes (which are hard to find... imagine what happens when you google "armstrong bike"... But I found this photo on bike forums:

I decided to recreate that as a real headbadge. That basically meant making a greyscale drawing, from which a 2D-to-3D software program generated a 3D model. Here is the 'preview' it gave me:


I had that printed in brass (which means the 3D printer put out a wax version, which the 3D printing company cast in brass; I then manually curved it to fit a head tube (somewhat imperfectly) and added some color (imperfectly as well... but I will get back to that). Here is what I have now: