Undocumented figures

When I was a kid, I remember having two Ben 10 action figures that I can't find any documentation of online (no pictures, no mentions, anything) so I guessed you would find them interesting. They were specifically of Chromastone and Humungousaur, both in their UAF designs. They had no articulation (although Chromastone's thin plastic limbs were quite bendable) and weren't taller than 9cm (4inches). They came with removable stands that could be attached to two holes in their feet (I lost both almost immediately, Humungousaur could stand just fine without it but Chromastone would constantly fall over). They were given along side kids meals at Goody's Burger Houses (a chain of fast food restaurants in Greece) around the 2000s (clearly as a promotion for Ben 10 alien Force). It's clear that figures of more aliens must've been part of this promotion, but I'm only talking about those two because they're the ones I owned. They were definitely not bootlegs since they were very show accurate and I believe Goody's are too big of a company to associate themselves with bootleggers. Unfortunately, I no longer have these figures but I find the fact that they are so obscure that I can't find any image of them on the internet intriguing