About half way through the film when Aragon, Legolas, Glimi and Gandalf the white have been confronted by the guards at Rohan and asked to remove all weapons there is a shot of Legolas handing over this two elven knifes and then cuts to Aragon handing over his sword but if you look in the backround you can see Legolas handing over the exact same knives. Surely WETA must have noticed this.