New figures from Paleocasts (Patrick May):
Microdictyon, a probably stem-velvet worm from the Cambrian of China:
Phlegethontia, a 'microsaurian' lepidosaur (stem-amniote) from the Carboniferous of Illinois, USA:

Both available here as either ready-made models or kits:
https://www.etsy.com/shop/paleocasts