Reference article
Mad Quacks Outfit
The Mad Quacks Outfit combines Mad Quacks Helmet and Mad Quacks Shirt into a complete look in 
Duck Life: Space.
Getting the outfit
Buy 
Mad Quacks Helmet and 
Mad Quacks Shirt at 
Mars Shop for 50 
Coins each. Equip both pieces on the same duck through duck selection.
Wearing the outfit
The hat covers the head, and the costume covers the body. Wear them together for the full outfit, or mix either piece with other clothing. Clothing does not improve racing skills.