Its a very small bonsai tree planter. I made it for my Dad as a Christmas present. For a few years now my Dad has been a pretty active member of the local Bonsai Society. Even made the paper a few months back.
This was printed out in a ceramic material. Looks pretty sharp too. Hopefully, I will be able to post a picture of this little guy with a bonsai tree in it.
Even though I had a bonsai planter in mind it could make a nice expresso cup or nick-nack holder. This can now be found over at Shapeways.