Hi! I've found the word "button bowl", which I discovered to be made of buttons. My question is: are all "button bowls" made of buttons? Is its name derived from that particular structure? Cause I also found an image of a button bowl that was not made of buttons... And do you happen to know if this kind of bowl is characteristic of any region of the world? Thanks! I know, too many questions, but I really think that, besides its being useful to my current work, it is also a curious question.