Carrying case for multiple POs

I have the whole PO family, all dressed in their silicone cases. I want to take them places.

I feel bad dumping them into my backpack and would love a protective, non-bulky way to carry them all.

I see that Cremacaffe has pouches, but they only hold three units each. Has anyone found or made any cool carrying cases for multiple/all POs?

I use the same gun case my Op1 fits in. Holds about 4 PO’s and no Op1. fairly large but I know they wont break!