Well I think the other Act V bosses drop better than Pindleskin now, I think Blizzard changed his amount of drops due to bots. Here's the names and locations:

Snapchip Shatter: is a Frozen Horror in the cave below the Ancient's Way.

Frozenstein: is a Yeti near the frozen Anya, in the Frozen River.

Thresh Socket: is a Siege Beast in the Frigid Highlands found near the first pen of captured Barbarians

And all of Baal's Boss Minions.