By Siren.Temeraire 2010-10-06 15:45:51
Caller's Pigaches +1 and +2 are -3 perpetuation cost. I believe the base Pigaches drop in Abyssea-Vunkerl, and you need to do quests and kill NMs in order to get Caller's Seals to upgrade them to +1.
You can always do a Magian Trial Weapon...elemental staff paths have options for up to -6 perpetuation cost.