25+ Ideas for a More Sustainable Halloween 

Halloween comes only once a year, but it carries with it a hefty carbon footprint and a whole lot of waste. From the wear-it-once costume to the plastic decorations and the individually wrapped candy, Halloween isn’t traditionally the most environmentally friendly holiday — but with a bit of creativity, you can have a far more sustainable (and equally spooky!) celebration. 

Here are some facts about the environmental impact of Halloween:

• The National Retail Federation predicts that in 2023, Americans will spend a record $12.2 billion on Halloween supplies (including costumes, candy, and decorations), much of which will only be used once.
• In a sample of more than 300 store-bought Halloween costumes, about 83% of the material consisted of oil-based plastic.
• One UK study showed that approximately 12.8 million pumpkins are thrown away each year after Halloween, contributing to the already massive global food waste problem. 
• Some experts estimate that each individual trick-or-treater generates one pound of trash. (Considering more than 28% of Americans plan to take their children trick-or-treating, that’s a lot of trash.)

Ready to plan your environmentally conscious Halloween celebration? Read on for DIY Halloween costume ideas, plastic-free DIY Halloween decorations, and sustainable Halloween candies to add to your kids’ trick-or-treat bags. 

10 DIY Halloween Costume Ideas

1. A zombie. Upcycle old, stained, or ripped clothing items by tearing them even more for an instant, DIY zombie costume! To make your costume even more timely, carry some cordyceps mushrooms a la The Last of Us. 
2. A classic cat. All you need are some black leggings, a tail, some whiskers, and a pair of pointed ears for a last-minute, DIY cat costume. Make your own cat accessories using construction paper or, if you’re handy with a sewing machine, some scrap fabric and stuffing. 
3. Cardboard box costumes. Leftover cardboard boxes = a vast array of sustainable Halloween costumes. Save yours up in the weeks before Halloween, then use them to transform into a robot, the Tin Man, or even Barbie herself in her iconic pink box. Remember to recycle them when you’re done!
4. ‘80s prom. Hit your local thrift store (or a relative’s closet) to dig out all the tulle, lace, and bow ties you can find to create a delightfully tacky prom look straight out of the ‘80s. 
5. Where’s Waldo? All you need is a striped shirt, a pair of round glasses, and a red beanie to recreate this classic character. 
6. A mummy. Have some old sheets with stains or holes? Tear them into long, frayed strips to create a better-than-store-bought mummy costume (and better yet, save it to wear again next year!) 
7. A skeleton. Cut the “bones” out of white construction paper or scrap fabric, then hot glue them to a set of black sweats for a DIY skeleton costume. 
8. A chef. Grab an old apron, a whisk, and an oven mitt for a cute and nearly waste-free chef costume. Want to make it even more official? If you’re crafty, you can also make your own chef’s hat using white tissue paper. 
9. A farmer. Grab a pair of denim overalls, a flannel shirt, and a pair of boots for the base of this DIY farmer costume. If you have them, add a stuffed cow for extra cuteness, or a straw hat to top it off. 
10. An NFL player. If you’re a sports fan, you likely already have your favorite football player’s jersey. Add some shoulder pads, leggings, and black paint under the eyes for an environmentally conscious, DIY Halloween costume. (Optional: a football as an accessory!)

Zero-Waste, Upcycled, and DIY Halloween Decorations 

• Gather fallen leaves and branches from outside to create mantle pieces and centerpieces that showcase the natural beauty of the season. 
• Cut eye holes into white sheets, then hang them from your porch or the trees in your yard to create ghosts that flutter in the breeze. 
• Instead of wasteful, artificial spider web decorations that pollute the environment, create your own spider web decorations using strips of scrap fabric from other crafts. 
• Cut classic Halloween characters (think: ghosts, goblins, cats, and zombies) out of cardboard from old boxes, then paint them black and hang them in your windows to create spooky silhouettes. 
• Try out these quick and easy Halloween crafts using everyday household objects to create your own spooky, sustainable Halloween decor.  
• Decorate your sidewalk on Halloween by placing small tea lights safely inside upcycled glass jars. 

Sustainable Halloween Tips 

• Reuse the insides of your jack-o-lantern to make a DIY pumpkin face mask or crunchy, roasted pumpkin seeds. 
• Cleaning the house for a Halloween party? Give your whole home a fall scent with these new pumpkin scented Rosey by Thrive Market plant- and mineral-based cleaning products. 
• Instead of giving out Halloween candy with common allergens, questionable sourcing, and artificial ingredients, opt instead for these allergen-friendly Halloween candies. 
• Want to make your trick-or-treat offerings completely package-free? Whip up these healthier Halloween candy swaps.
• Use an old pillowcase or a reusable tote bag to collect your kids’ trick-or-treat candy. 
• Reduce the waste at your Halloween party. Instead of single-use plastic, choose compostable plates, compostable utensils, and sustainable food wrap for any leftovers. 

More healthy and sustainable Halloween tips: 

Step Into the Spirit Realm with a Halloween Recipe for Rosemary Apple Picnic Pies

Healthier Halloween Candies to Hand Out This Year

Allergy-Friendly Candy, Sustainable Costume Ideas, and More Tips for a Healthy Halloween