Custom. Unless the creator painted it, then 1-off.

1st i thought you said toys with 'noodles' and pictured ramen covered Booska prototypes.

I call it a platform toy. ;P

I've always thought the term 'prototype' encompassed all pre-production forms of a toy. You could then be more specific and call it a factory sample, test shot, paint master, hardcopy, etc.

The only thing that comes to mind as a 'true' prototype for JP vinyl is the resin Stereogon from Nerd One:



Ultimately, the production vinyl Stereogon came out much larger and articulated. This smaller resin figure was used initially to show the concept for the design at toy events.

samples... just realized I left out the wax copy, which was in between sculpey final and test shot.. oops

Nice sequence, i love these kind of documentation of the process.