Misha, I thought he had stopped, but Kirra Gallery in Melbourne has a range of "Tree Stump" vases that are quite recent I believe. I suspect he is cutting back. A pity since so many wonderful ranges came from his studio. The Desert series, Rainforest series, Reef Series, Dreamtime Series, etc. many of them copied blatantly by others since.
By the way one of the first pieces I was able to identify for a GMB member was of a Dreamtime Vase which was unusual to me as it had a light background and dark figures - the opposite to what I was used to.