Giant Hand - (Instant Knockdown but Little Damage):
It is in a small alcove to your left during the second or third Dahaka chase (depending on how you play).

Glowing Sword (Very High Stats but also Damages Prince):
Immediately after the room covered in Fog it is Behind a wall in a pit.

Teddy Bear (little damage but heals the Prince with each hit) - Mechanical Pit (present):
Take the stairs up at the area where you fought the second Brute and look for a breakable wall in the water-filled pit.

Garden Flamingo Hanging Garden (Present):
In the first alcove you reach behind a wall.

Hockey Stick - Central Hall (past):
Rotate the switch towards the Hourglass Room then use the new path to reach the breakable wall at the bottom of the room.