Lots of tiles are required, I need 16" of them set end to end like this.


Then they are glued to a slip of veneer to hold them all together. Then they are ripped to 2mm strips. Carefully! A fine tooth 1/8" blade works well for this. Anything coarse will rip it apart.

And the finished result. When being glued up in the rosette a matching line of veneer will go on the opposite face of the one already glued on.