Helmet, Disk Shape with Stud on Front

Technic Axle 2 Notched Brick Curved 2 x 2 x 2/3 Wedge Plate 2 x 2 Cut Corner Plate Round 1 x 1 with Solid Stud Arm Mechanical with Clip [Thick Support] Plate 1 x 2 Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small Brick Wedged, Curved 2 x 1 with Stud Notch Right Brick Wedged, Curved 2 x 1 with Stud Notch Left Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole Brick Curved 2 x 1 No Studs [1/2 Bow]