Crescent Beach: in the skull rock cave over by the barrels... don't forget to pick up the skeleton pirate chess player :)
In Kondha Desert Duran Dunefather's neighborhood... check the green arrow location on the right hand side of the map.
In the Hive it's in the little cave off the back wall of the BLACK HOLE of doom.
In Fort Rachias (if you squint hard you can see the location arrow just to the top right of the center tower)
In the last wood it's near Pepper Grass Nook just inside of Mr GentleWind's house under the tools. (see below)
The Bastion Khryket is in the throne room after your first battle as you continue on you should see it standing by the door. (picture below)
In Silent Market there he's hanging out near the bench inside VanekWarscream's place. (note the map position of the green arrow in the image below)