3 links have been added on this idea.
  1. Light bulbs made from upcycled plastics are more sustainable. Plus, they can reduce the amount of plastic waste that ends in landfills or the ocean.

  2. Check out these solar-powered bulbs made from plastic bottles.
    https://www.theguardian.com/environment/2011/dec/23/sunlight-bulbs-plastic-bottles-light