How to join this toy? Look through the pictures. Use elastic cord or stretch yarn or elastic yarn for joining all parts of the doll. You'll also need to buy neodymium magnets. (Magnets first, wire after magnets!) Inside the head you should insert hard wire (not all printers can give you good strength so hard wire is better than plastic spar) for joining head with other parts of body. You can use kneaded rubber for fixing eyes in the head or not cos shark's head has places for eyes. You can paint this doll with acrylic paint as you wish. This dog is a ball jointed doll, so it's flexible.