-Chocobo Forest southwest of Baron Castle.
-Chocobo Forest northeast of Fabul Castle.
-Chocobo Forest south of Mount Ordeals.
-Chocobo Forest south of Troia (near a bridge).
-Chocobo Forest east of Troia (on the island by itself).
-Underground Waterway. Enter from Damcyan side and he'll be on the west side of 
the map past the bridge near the door leading up.
-Mt. Hobbs (where you fought Mom Bomb).
-Sylph Cave. B2 close to where you obtained the Mage Masher.
-Bahamut Cave. B1 near the Genji Shield chest.


*Black Tail -> Onion Armor
Drops from Armored Fiends. Use a Siren on B2-B3 of Bahamut's Cave. Try to Steal 
a Rune Axe during this process if you want.

*Blue Tail -> Onion Shield
Drops from Thunder Dragons. Use a Siren on B2-B3 of the Path of the Eidolons.

*Green Tail -> Onion Helm
Drops from Green Dragons. Use a Siren by the Sealed Cave entrance.

*Pink Tail -> Adamant Armor
Drops from Flan Princesses. Use a Siren in the B5 Lunar Subterrane southeast 
room (which had a Red Fang in the chest). The easiest way to quickly defeat 
these is to have Cecil using Draw Attacks and Counter. Set his first ability to 
use Stardust. The fight should be over after 3 Stardust Counters.

*Red Tail -> Onion Sword
Drops from Red Dragons. Use a Siren on B8-B10 of the Lunar Subterrane. Remember 
that Berserk and Hold both work on these mobs. You can also try for Crystal 
Rings at the same time, which is a rare Steal from these.

*Yellow Tail -> Onion Gloves
Drops from Yellow Dragons. Use a Siren by the Path of the Eidolons entrance.

*Silver Apple
Use a Siren on either of the top two floors of Mt. Ordeals to encounter Lilith. 
She'll die quickly and has a 24% chance (with Treasure Hunt) to drop one. She 
also drops Lilith Rod with a 10% chance if you want one.

*Soma Drop
Use a Siren on the first floor of the Lair of the Father to encounter Dark 
Sages. These have a 10% chance (with Treasure Hunt) to drop these. They also 
drop Ribbons with a 0.8% chance.