Eco Hot Water Bottle nukunuku Dedicated Cover Alpaca Pattern An eco-friendly hot water bottle that can be used simply by charging with a cord. This is an auction for the nukunuku dedicated cover only. If the size fits, it might be possible to use it with other hot water bottles. You could also stuff it with cushions and use it as a cushion cover; it would be cute. I am selling this because the hot water bottle inside broke.