Neither raising nor lowering the tone particularly, but just to add another coal, log , er, uh... another shovel of wood chips to the fire, here are a couple of ceramic Netsuke examples.
Unfortunately I do not have any human or animal figures here with me here, or good photos of them, but my general impression of ceramic figures is that they tend to be quite crude. I do have a nice little Satsuma figure of a woman carrying a giant 'kabu' beet on her back, but I cannot be sure that she is a Netsuke, or just a small *okimono.
The first of these is part of a sagemono set I carry everywhere with me as it contains my hanko. The next is a similar ceramic 'haizara' ashtray which I found in an antiques market quite recently. The third is a lacquered ceramic chestnut, with quite a bit of damage to it. The fourth is a very simple 'manju' with copper fastenings that I found about 20 years ago in an old drawer of bits in an antiques street market. (Photos to follow.)
*Okimono, a free-standing decorative object designed to be placed on a flat surface for display. They might have been carved, even signed by the same artists, but differ from Netsuke in that they were not designed to be worn like Netsuke, they are usually bigger and more intricate, without needing to worry about catching on clothing. Other general giveaways are a large-area flat base and lack of himotoshi holes.