I made a square platter on my lathe from padouk, linden and oak.

I first sawed the padouk block in half and sawn both halves diagonally, then I glued the linden slats onto the padauk triangles.
When the glue had hardened, I sawed the triangles off at right angles and then glued them to the oak centerpiece.
When the glue has hardened, I mount a faceplate to the wood and attach it to the lathe and start turning the bottom of the platter.
Once I have turned the bottom and provided a recess, I sand it and apply a few coats of sealer.
I then reverse mount the platter with the recess on the chuck and hollow it out.
When I turned and sanded the bowl and gave it a layer of sealer, I noticed that the linden and oak had turned a reddish color due to the padouk sanding dust.
So the next time I sanded, I only sanded the linden and oak and gave it a layer of sealer. After the sealer had hardened, I sanded the padauk and applied it with sealer, and I applied three layers of sealer in this way.
And for the finishing touches, I sanded to 600 grit and finished the platter with friction polish.

The platter has a size of 34 centimeters square and 6 centimeters high.