[The Saucepan Man]

Estanesse is close enough. The answer is that they were all intrinsically involved in the death of a Maiar except the Axe.

Ecthelion's Helmet helped seal Gothmog's fate.
Wormtongue's Knife of course dealt a fatal blow to Saruman.
The destruction of the One Ring caused Sauron's demise.
Gandalf used Glamdring in vanquishing the Moria Balrog.
And the Balrog's Whip pulled Gandalf down to further combat, resulting in his death.

As far as I know, there is no reference to an Axe having been used to kill a Maiar.

Well done, Estanesse. Please continue. [img]smilies/smile.gif[/img]