You will need to make 2 copies of this card to complete the collection.
Easier on the Eyes = 2 x Tube Integrity Tester + Hoop Tester
Hoop Tester = Mobile Aquarium Light + 2 x Calligrapher
Confetti Dispenser = 2 x Circus Performer + Easier on the Eyes
The Howling Three = 2 x Pillow Tester + Confetti Dispenser