They're harmless ... as harmless as plastic ocean litter can be anyway ... they're small and they have a very unique look after being through wind, rough currents, weather and getting scraped by sea salt. Unexplained piggy banks, of unknown origin, are washing up on Texas beaches. Again.
Have you ever felt like you were not alone but you didn't see anyone around? It's that feeling when your hair stands up on the back of your neck and you have chill bumps on your arms. I was in my barn and knew I wasn't alone.