Required Characters: Explosive, Sith
Canister 1 (Free Play): You'll see it sitting just behind Luke when the level starts in Story. You need Free Play to actually grab it though. Round the corner to the right to find it.
Canister 2: After defeating the Tusken Raiders, and the staircase has been forced together, it's sitting up on the higher level, on the right side.
Canister 3: Sitting high above, use either a Jedi or a Hover character to reach it from the last platform before the next dunes, on the right.
Canister 4 (Explosive): Stay on the bottom of the Cliffside. At the end, you'll see a broken wall. Blow it up with a Thermal Detonator to grab the Canister.
Canister 5 (Sith): In the canyon, Jump up onto the side to the upper section. On the left side, there's some black bricks you can Sith Force. Inside this room, destroy the central block, and shoot both stakes to light them up. The Canister will appear in the middle.
Canister 6: Drain the Quicksand with the Protocol Panel. It's sitting on the ground after it clears.
Canister 7 (Sith): Head down the pathway until you reach the point where the road continues to the North. Take the stairs on the right, and platform up the Canopies to reach the top. Sith Force the bricks out of the way to enter the small home, with the Canister inside.
Canister 8: Near the end of the area, sitting on the upper level in plain sight. Simply walk up the stairs to get it.
Canister 9: Head straight towards the nearest home. Jump on the roof, and Double Jump from the roof to get the Canister.
Canister 10: Head up the stairs about halfway down the street. Jump on the roof to the right to get onto the Canopy. Enter the door here to get the Canister in the cell later down the street.
Minikit Character: Zuckuss