A friend of mine has a lotus flower grill,which we think is of
Japanese origin.  The name of it is called a nobi/nabi (we aren't
quite sure of the spelling).  It's made of cast iron & is, of course,
shaped like a lotus flower.  It sits on some type of flame & has
petals that branch out from it, which act as individual grills for
guests.  Can you tell me more about the origin of this & where it can
be bought?  Thanks.