Has anyone found them? If not here they are;

NOTE: These eggs are only on the extended DVDs

LOTR: Fellowship of the Ring
Go to Scene selection on Disc 1 go to the last of of scenes and scroll down until the cursor goes on secret scene and press enter you'll have a secret scene

LOTR: The Two Towers
Same as Fellowship of the Ring

LOTR: Return of the King same as the other two and there is another one on Disc 2 you do the same thing as the others.