I made a short video showcasing what I believe to be the most effective (and safe) method for farming these. Involves a Dragonslayer Greataxe, +5 idealy but lesser still does the trick. Warp to Great Belfry bonfire, and rush to the stairs with the 4 Rock Lizards. Just as you exit into the open aggro all 4 rock lizards by standing at the edge of the right level/floor thing. Pull back so they stack against the short wall. Walk again and use WA from above. You can safely and efficiently cheese all 4 of them if you stack them right. So walk, aggro, stack, WA, pull back from fire, walk again, WA until they die. You can do you it in 3-5 strikes depending on the level of reinforcement. I'd put this info on the wiki along with the actual video butI don't know how to edit the wiki.