Many, many years ago, before I found my first pair of black plastic bowls for my first go set, I used drawstring bags sewn from some old Levis. Later I scored a pair of climbing rosin bags for a portable setup.

https://www.rei.com/product/163060/arcteryx-c80-chalk-bag

I recently stumbled upon these cool little bags, handmade in Seattle. The small holds any sized stone, the large is 8” diameter so could probably hold a bowl and some padding.

https://www.tombihn.com/collections/stuff-sacks/products/travel-tray?variant=17228031495

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David Bogie, Boise ID
I play go, I ride a recumbent, of course I use Macintosh.

Hi, I remember I had the same problem with my first Go set (an all in one, very small, not regular stones, without bowls).
I had found out this product from IKEA: https://www.ikea.com/us/en/catalog/products/80328145/

But in the end, I resolved to use a pair of miso soup bowls, since the small stones fits and the feeling was all so Japanese to me
Galation

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When you play Weiqi you are joining millions of people across four thousand years of time.
Jonathan Hop - So You Want to Play Go?

Seems it takes two miso soup bowls to hold one set of color stones...

Sorry to gravedig this, but I finally found back my old set.
I still enjoy the colour effect.
This February are 10 years I am playing.
Galation

_________________
When you play Weiqi you are joining millions of people across four thousand years of time.
Jonathan Hop - So You Want to Play Go?

Happy "anniversary"!

Those Miso soup bowls are perfect!