Have you ever seen a Nod-ling?

Ryland was playing outside today and found a toy. I saw him pick it up, look around and start talking to himself. Then he came up to the back door to show me what he found. I have no clue what it is but apparently he does. He told me it was a "Nod-ling" hat. He then told me a Nod-ling was a creature that lived in the forest. He asked me if he was going to come back for his hat.

I guess we'll just have to wait and see....