"Pick up metal bikini" is a objective in the sidequest Ell In Shining Armor in Tiny Tina's Assault on Dragon Keep DLC.
Walkthrough[edit]
Ellie has sent you into the The Forest to find her some armor that will fit her. You find it by The Blacksmith's Cottage.
The Metal Bikini is found in the crate on the southwestern edge of the cottage. Grab it and return to Flamerock Refuge to give it to Ellie. She will reward you with a Blue Grenade mod.
