To be serious for a moment, I go back and forth about whether to even joke about things like this -- the movie is just so incredibly personal to so many people, and I want to tread lightly where such strong feelings are found. And, to be honest, I'm not really a collector (in fact, I think Meryl knows that I have a tendency to either roll my eyes or run away screaming when the Frodo dolls appear)... but I love the idea of collecting stuff, even if I don't do it myself.
And, yeah, those Billy dolls are too built for my tastes, too. (Hung is ok, but I think the human neck is a lovely thing.) I would prefer dolls with the rangy good looks of Heath and Jake, as well. (And they need Heath's dimples. And Jake's eyelashes.)
I saw the Legos thing a while back -- yeah, they're cute. Especially the Lego tent and Lego sheep and the Aguirre with the little mustache.
Didn't see the Youtube thing, but I've got this nasty slow internet connection, and it takes half an hour to load a Youtube video so I can watch the thing, so I skip most of the links. (The "lines visualized" thread loads too slowly for me, too, unfortunately... I could use that outlet for my humor.) I remember also seeing somebody selling a "BBM action figure set" on E-bay at one point -- I'm not sure what dolls they used for Jack and Ennis. (Maybe a couple of different Ken dolls? The picture wasn't great.)
I don't think R-rated movies usually get action figures. The toy makers assume that their target market is under 17 -- though I think the Lord of the Rings marketers eventually figured out that adults were buying the toys. But they still think that the market is just obsessive geeks, and that people don't get obsessive about romance/drama.