Impossible Objects - Kikkoman Soy Sauce Bottle

Kikkoman Soy Sauce Bottle
Designer:John Rausch
Craftsman:John Rausch
Category:Impossible Objects

The back of the bottle says "Refill only with Kikkoman". Oops!
 
One of the more difficult bottles I have done. The neck is very narrow and the cube, as always, is 100% unmodified.