There is one self-watering method that uses a bottle but doesn't wick the way the others do. It slurps up water to become a drip irrigation system using a plastic bottle, sticks, duct tape ...

The upside-down bottle technique is another easy-peasy way to self-water. All it requires you to do is fill a plastic bottle ...

Use bottles as seed storage Small plastic soda bottles can be ... you can turn old plastic bottles into watering globes.