I used to make quite a lot of these. They were very popular items at the markets and elsewhere. And they’ve been made from all sorts of timbers.
This particular platter is White Cedar in the middle, Mango Ends and Melaleuca feet.
I have heard these being used for all sorts of things. A platter for nibbles and shushi, but interestingly they’re also used as bases for Japanese Bonsai & Ikebana displays.