Boomerang Cups

Cup or Mug libraries are becoming an everyday sight at responsible cafes across the world from New Zealand Canterbury University to Canada to the UK, Australia to Germany.

It is a really simple idea. Instead of using a disposable cup that cannot be reused, recycled or rot due to the plastic lining you can use a donated cup or mug. Once used return it the next time you visit the cafe. It works similarly to Boomerang Bags, and that is why I call them Boomerang cups.


  1. Donate your unwanted clean cups to your local cafe.

  2. If you forget your keepcup pick a boomerangcup from the cup library.

  3. Bring the washed cup back to the cafe next time you visit.

How does it work?