Cocoa could be another visual interpretation as well, and based on some very cursory searching it looks like both have a history in Spanish colonial Puerto Rico. Now that you’ve brought up that visual aspect, the bowls remind me a bit of volcanic stone metates that are used to grind up cocoa beans (although I’m familiar with that through Costa Rica, not PR).
Cocoa could be another visual interpretation as well, and based on some very cursory searching it looks like both have a history in Spanish colonial Puerto Rico. Now that you’ve brought up that visual aspect, the bowls remind me a bit of volcanic stone metates that are used to grind up cocoa beans (although I’m familiar with that through Costa Rica, not PR).
I forgot about cocoa, but I also don’t know off the top of my head what the beans inside the pods look like. You could be onto something.