One of the things I've been collecting and really like are these Lead Figurines from Eaglemoss. They have both the Marvel and DC license, as well as a Lord of the Rings license (doing a chess set).
The figurines are Joe-scale-ish and highly detailed. They are even doing the Batmobiles.
I love the things and keep thinking that it's something that could really fit G.I. Joe. Could do a line of vehicles and characters.
They are basically mini-statues and each comes with a magazine giving the history of the character. I could care less about the magazine, it's the figurines I really like.
I really could see other lines done in this form; Masters of the Universe, Thundercats; but would love a series of Joes done this way.
They are only sold in specialty stores (comic shops) and online. I usually get 'em through BBTS: BigBadToyStore.com Search