Changing the head.

Here is comparison photo of Lati White head and Obitsu11's neck.  
(You can take off  mushroom top shape part.
It need extra small screwdriver. )
But unfortunately Lati white Head cannot attached without custom.
  Lati white Head hole is 2.5mm width and Obitsu 11's attachment part is
4mm diameter.

Pukipuki's head hole is almost 2mm inside.
Obitsu 11's  neck attachment part got screw hole inside.
It's looks not easy to make thin neck.
I think It doesn't look easy to use Obitsu11 body to tiny BJD's head.