Label your mug!
Last but not least you can start with a Marker over or Napkin on the edge of the lid your chosen slogan, or you can label it with your name, so that your cup is not mixed up
Make sure that the hole for drinking remains free, so that the lips are neither connected with the Napkin varnish Marker contact!
With just a few simple steps, you can create great, reusable cups for your favourite hot drink on the go.