After acquiring a sword that can break walls, get to the Garden Hall (Present). Begin at the middle passageway at the very top of the hall. Wall run to the rope, then wall run to the central platform. Turn to the left and walk through the rubble that should be in front of you. Turn around and hold onto the platform you were just standing on, then jump across the gap to the next platform. To your left is another platform with a switch. Once there, use the switch then go back to the platform you were just on. Climb on the block that is now here, then do a vertical wall run and jump to get to the beam above. Walk along the beam to the right then jump to the ledge on the far wall. Follow the ledge until you find an alcove, then drop down into the alcove and use your sword to break the rear wall on the right side. The pink flamingo weapon is hidden in the weapon rack. One hit from it can knock anything except Bosses to the ground.