There are a lot of items that are (donators only); But, even though drygores and kalphite armor may only be dropped by Yk'Lagor the Thunderous as to date - that doesn't mean they are exclusive to donators alone. If a donator appears to get lucky and get a drop regarding the items mentioned above^ that donator can choose to sell those items to a regular player if they wish... as that would be the only possible way a regular player could get his/her hands on a drygore/kalphite [melee] item as of right now. On another note, the Kalphite Queen drops the [range] version of kalphite armor for all players. It is currently 'one' of the strongest range armors in the game.