Parts Needed: Droid arms and body, black cone, orange transparent stud. Optional: Minifigure, scuba suit, 3 items. ( For example, I used two Brickarms MP 40s and shotgun. )
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Step 1: Assembly
Build the arm itself like in the pictures.
Step 2: Optional
There you guys go! A Lego exo arm! Thanks for reading my second Instructable!