Before G3 actually started, they had drawings on their website of the first eight ponies (Minty, Pinkie Pie, Kimono, Sparkleworks, Wysteria, Rainbow Dash, Sweetberry, Sunny Daze) and I distinctly remember Minty was green with GREEN hair.
Did anyone save that? It was a drawing, not a photo. I think it showed all eight ponies at once, arranged in a sort of circle around the G3 logo.
Also, does anyone know where a good archive is of G3 news? Not anything like "My Little Wiki", but something that shows posts FROM BACK THEN, like "Oh my God, you guys, I just found out the Celebration Castle plays the original MLP theme song! I'm flipping out here!!!"
Unfortunately I don't think the MLP Arena was around when G3 started. The Trading Post was, but it's archives don't seem to go back that far.
I'd especially love to find anything relating to the debate of "what do we call these new ponies", because I know the G1 / G2 / G3 labels didn't exist until the start of G3.