Create a website that sources event products (like cutlery, cups, t-shirts, freebies, event signage) that can be either recycled or biodegraded.
Having a website of pre-approved products makes it easier for people to find products they need for their event. It would also ensure the products are of a standard that would meet the standards of a circular economy.
It would also mean people would not have to trawl the web to find a less perfect solution. If all businesses used the website it would be easier to clean up as the all the waste would be either biodegradable or recyclable, reducing contamination of the environment and waste retrieved.