Iorek Byrinson's Armor

When Iorek speaks of replacing his Sky Iron armor with the rust metals he bends and weaves, he says that it's like replacing Lyra's daemon Pantalaimon with a doll. This shows that another theme is that anything that is lifeless, without meaning, nor love is something that is worthless or insignificant.

(Note: In the book version, Lyra isn't with Lee Scoresby when going to see Iorek Byrinson at the Metal Shop in order to convince him to join them in the war.)