The one you get for killing the sphere boss thing, obviously.

Near Besaid temple.

In a tiny little passage place on Gagazet.

Near the elevator on Mushroom Rock.

Southern half of the Thunder Plains.

Near the entrance to Macalania Woods.

Somewhere in the Moonflow area. I forget.

Somewhere on the ship.

Near the Mi-Ihen/Mushroom Rock checpoint. That lower path that leasds to a dead end, I think....

Luca city outside one of the locker rooms.

I think that's all of them.