The top part of the bells is screwed on a purposely made acrylic fixture. I have some risers so that the AxiDraw sits just above the bells. They are painted with Posca pens and then receive two coats of clear varnish.
We love to see how AxiDraw gets used, especially when we get to see the fixtures people make for drawing on unusually shaped objects.
Thank you to Alexandre for sharing these process pictures with us! Their beautiful bells are available through Etsy as well as in select bike stores in Portugal.