Making a mosaic rosette for a guitar

On the left are planks that have been glued.  In the center is the press that holds the plank as the glue sets up.  On the right are sticks arranged in order waiting to be glued.
At the top is the notebook with the rosette pattern.
The one on the bottom is the design with a black instead of white background, the spiral in faded orange, and the bead in red.
After all the planks are glued, they are scraped flat and glued in a stack to make the rosette log, which is sliced into 1mm tiles.  The tiles are assembled in a round form and then inserted onto the guitar top into a channel around the soundhole.
This design is a double spiral with a red bead at the intersections of the curves.