OK, I thought I'd pose an easy-to-research and interesting topic here for us to take a look at.
What do we know of the weapons orcs used? Particularly, what do we know of the poisons and such they employed?
"There Iluvatar permitted the Valar to maintain upon the Earth an abiding place, a memorial of that which might have been if Morgoth had not cast his shadow upon the world." -Akallabeth, The Silmarillion
"When you can do what you want, you will be who you are." -John Hagee (first person I heard use it anyway)