Possibly Ivory, Soapstone, Resin,
These pieces look all quite late to me; If thre are ivory pieces there you should not sell them because of CITES regulation. If you want to be sure please send pictures of each piece to me in daylight. They really need to be sharp. No full sunlight please. Now I evaluate only decorative value to the pieces. They are all Chinese / Hong Kong en seams to be after 1960.