Lego said if the test is successful, it may expand the program beyond the United States next year.
The company typically tells its customers to keep their bricks or pass them on to others. But some have asked for another way to donate them, said Tim Brooks, Lego’s vice president of environmental responsibility.
Lego, like other big brands, is looking to please customers worried about discarded plastics’ impact on the environment. Plastics don’t disintegrate but can break down into tiny pieces and be eaten by birds or other wildlife, endangering their health.
The company is also working to find other materials for its colorful bricks. But finding one as durable as plastic has been a challenge, said Brooks. Last year, however, it began making Lego trees and bushes out of sugar cane.
Hasbro, which makes Monopoly and Mr. Potato Head, said it plans to eliminate plastic use in its packaging by 2022. It too has said that finding a material to replace the plastic in its toys has been tricky.