![](https://mappery.org/wp-content/uploads/2023/04/image-4.jpg)
Marc Tobias had sent me a pic of his thermal world mail mug and I had to have one. So when we meet for lunch after the April Geomob he brought me one.
![](https://mappery.org/wp-content/uploads/2023/04/img_6120-768x1024.jpg)
When the mug is cold, the map is all black. But when you fill it with a hot drink all the colours and detail appear.
![](https://mappery.org/wp-content/uploads/2023/04/img_6121-768x1024.jpg)
I think this is going to my favourite mug for a long while.
Thanks Marc Tobias!