New Orleans Mardi Gras is tackling plastic waste from traditional bead throws by adopting biodegradable PlantMe Beads made from polylactic acid that include okra seeds for planting after the parade.

For the 2026 season, LSU produced 3,000 PlantMe Bead necklaces and distributed them to three krewes to gather feedback on reception and practicality.

LSU researchers, led by Naohiro Kato alongside graduate student Alexis Strain, developed the PlantMe beads after algae-based bioplastics proved too costly, with PlantMe emerging from 3-D printing work.

LSU biologist Naohiro Kato and graduate student Alexis Strain lead the project, supported by funding and collaboration aimed at reducing waste and creating educational opportunities in bioplastics and plant biology.

LSU’s lab is partnering with local schools to promote environmental education through bead-making, weaving sustainability into Mardi Gras culture.

Kato envisions engaging local schools in bead-making to educate about bioplastics and plant biology, while pursuing faster-degrading materials and commercialization pathways for algae-based plastics.

Researchers see potential for broader education and community involvement, including school collaborations to teach bioplastics and plant biology, and exploring faster-degrading materials beyond PLA that still allow planting.

Kato envisions community 3-D printing projects in schools to educate students about bioplastics and plant biology, while pursuing commercially viable algae-based plastics.

Krewe of Freret leaders note a cultural shift toward items that spectators value and will keep, helping reduce litter and environmental impact during Carnival.

Ongoing research assesses microplastics in the lake and evaluates the environmental impact of bead alternatives, aided by new grants to the Conservancy.

Organizers emphasize reducing waste and shifting culture toward eco-friendly memorabilia of lasting value beyond the Carnival season.

The initiative seeks to redefine Mardi Gras keepsakes as environmentally friendly mementos while expanding bioplastic commercialization and community bead-making and education opportunities.