Textured and coloured spiral rim
Some simple texturing, a bit of ebonising lacquer, some sanding back and then spirit stain dabbed over the surface. A lacquer finish protects the rim, and wax protects the uncoloured wood.
Colour and texture
Layers of acrylic paint applied while the bowl is spinning on the lathe, framed with a black inner and outer edge
Textured and coloured
Surface textured with rotary tool and burr and coloured with spirit stains applied by airbrush
Shades of blue with yellow highlights applied over ebonising lacquer to create a decorative rim