Technic, Universal Joint 3L

Technic, Axle and Pin Connector Angled #2 - 180 degrees

Technic, Pin Connector Toggle Joint Smooth Double with Axle and Pin Holes with Yellow Warning Sign Pattern (Sticker) - Set 42082

Technic, Axle and Pin Connector Angled #5 - 112.5 degrees

Technic, Axle and Pin Connector Perpendicular Double Split, Reinforced Sides

Technic, Axle and Pin Connector Perpendicular Double with Axle Connector 2L

Technic, Axle and Pin Connector Perpendicular Split

Technic, Axle and Pin Connector Perpendicular 2L with Axle

Technic, Pin Connector Plate 1 x 2 x 1 2/3 with 2 Holes (Double on Top)