The baby has changed to become a mer-baby... his tail fin is made of liquid Fimo and the fin bones are of clay. They are very fragile and I may need to re-do the fin and use wire instead.
This is my first mermaid sculpt and I'm pretty pleased with his results! I made him gills instead of ears and he's got extra fins on his arms and waist made the same way as his tail fin. The liquid Fimo dries to a rubbery consistency.