The “Collapsible Bowl SVG” post by @greg201 and the reference from @AKL lead me to the Zenziwerken site. I copied the graphics, traced the parts in Affinity Designer and modified the slots
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Decor
Bowl1A.svg
Bowl2.svg
Bowl3.svg
I used oak board 6.3mm thick
Shaper Origin with Workstation
Router bits 1/8" and 1/16"
The files Bowl1 and Bowl2 have all the parts needed. File Bowl3 does not include all parts, you will need 7 pieces each of both types. The connecting slots widths match the 6.3 mm thickness of the board I used. You should modify the widths if you change the sizes for another overall bowl size or have a different material thickness. A 0.2 mm negative offset at the slots resulted in a nice tight fit. I cut the shapes with a 1/8” bit and made a final cut of the slots with a 1/16” bit to minimize the curve in the back of the slots. Finish: Minwax Wipe-on Poly
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