ZobbieToo

An updated & improved? head for Zobbie
Front and back clip into place
Head has mounting that fits the std. Tobbie mounting point.
fixing holes for pi zero, or possibly accessories

I have not added any mounts fro battery boxes etc as there are so many available I leave it to the user to find the best fitting method.

Update:-

Added new back panel with mountings for 2*AA battery holders (1 each side for balance)

AA batteries may be too heavy for stability but AAA batteries also seem to fit :-)
screw holes are miss placed but they are a tight friction fit anyway (alternatively a drop of glue should suffice)

Parts list
Raspberry Pi ZeroW
Rapsberry Pi 40 pin header (or just by the ZeroWH if you don't want to solder)
Pimoroni Wide Input Shim https://shop.pimoroni.com/products/wide-input-shim
Pimoroni Blinkit https://shop.pimoroni.com/products/blinkt
my own i2c motor controller. any dual motor controller board should be ok just as it allows access to the gpio pins for