Adult Avocado Costume Everyone loves an avocado from Mexico! They're nutritious, delicious and easy to incorporate into your daily meals. Become every Californian's favorite fruit this season in our Adult Avocado Halloween Costume! This item features a screen printed avocado tunic. Pick up our Adult Avocado Halloween Costume today and become the world's healthiest fruit. No matter what party you show up to, you will instantly make everything gain a higher nutritional value.