Park employee Emily Gibby found the lanyard on Thursday. She said it had a note that read, "Hello, I am autistic and I don't talk much, but I would like to trade for Mickey pins."
The lanyard had a couple of pins attached to it but Gibby added 11 more and posted a picture on Facebook.
The picture has been shared more than 10,000 times on social media.
If you want to claim the lanyard, call Disneyland's lost and found.
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