Chalk this one up to 'how on earth have they not done this before', but seriously: How has this not been done before? Look at that giant, spinning Mjolnir! That's great.
There's a lot of weird knick-knacks out there that the moment you see them, you think 'How has someone not done that before!?'. I'm not entirely sure a mug in the shape of Thor's legendary hammer Mjolnir is one of those things.
One of the very best things about Kat Dennings' character (Darcy Lewis) in the Thor movies is how she pronounces Mjölnir. Instead of calling it by it's traditional Norse name she prefers to call it Mew-Mew. And some genius has created a "Mew-Mew Mjölnir."
What do you think Thor is doing in this new image? Fighting some kind of mud-related assault, or retrieving Mjolnir from its resting place? Whatever it is, it's making him sweat. Check out another Thor image below.