17 DIY Halloween Costumes
That Skip the Plastic
Your Halloween costume is probably plastic. A survey of 324 costume items found 83% of the material was oil-based plastic, mostly polyester, and polyester costumes shed microplastic fibers all night long.
The fix is the fun kind: make it yourself. These 17 costume ideas are built from natural fibers, cardboard, and thrifted clothes, with every supply linked so you can grab exactly what you need.
New here? Start with these
My favorite low-plastic picks
I've spent way too many hours reading lab reports and ingredient lists so you don't have to. These are the low-plastic swaps I actually use in my own home — the ones that passed my "would I tell a friend to buy this?" test.
Explore by Topic
A little about us
We're a family with young kids — not scientists or lab techs. This site started when we read that researchers had found microplastics in human blood, and then in breast milk. We went down the research rabbit hole, and built this site to share what we found in plain English.
The Easiest Swaps to Reduce Your Microplastic Exposure
Grab our free PDF guide with 13 simple, no-stress swaps for your kitchen, bathroom, and laundry — so you can start cutting microplastics at home today.