JUNEAU, Alaska (AP) — A ball. A boat. A little girl’s sandal. Filmmakers are working to find — and tell — the stories behind some of the items that have washed up on North American shores following the deadly 2011 tsunami in Japan.

“Lost and Found” aims to reunite items discovered by beachcombers and others who feel compelled to return them to their rightful owners, co-director John Choi said.

A trailer for the film, which is still being produced, features two men affected by the items they’ve found. John Anderson found a volleyball on a beach in Washington state and Marcus Eriksen, head of an expedition that sailed from Japan to Hawaii to look for tsunami debris last year, found part of a boat. Neither of the items has been linked to their original owners yet.