Huh.... took me less than an hour to farm 9 Souvenirs from the Harpies. I expected to be stuck there for several hours.
Damn.
Also, in the hunt for the White Titanite Slab, I accidently stumbled into Nito's lair on NG+. Beat the fucker up like the little bitch he was on the first go, then went back to Firelink, and back, to grab the slab so I could finish the next to last weapon reinforcement.
Feels kind of weird knowing that a Platinum is only 3 easy trophies away. Took me ages to get one in Demon's.
You need Large (found in The Depths) and Very Large (found in a horrible place in Tomb of Giants, filled with 5 or 6 giant skeletons), then you give them to Andre, and he'll set you up. Bring loads of Titanite shards, 9 large shards, and as many chunks as you can. You'll get it up nicely. Might not need a 15 right this minute, but on it's way to 10 or slightly higher and you're set.