I spent a long time finding the right coffee mug recently. You’re going to use it daily, so you have to like it. I ended up with a nerdy Skywalker Ranch one I bought when I visited Lucasfilm, but I may trade that in for this unique mug.
You can’t acually solve this Rubik’s Cube, but I love the square design of it. I like mugs that have unique shapes, and this qualifies. It’s 8.99 pounds (I don’t have the energy to look up how to make the pounds sign on my keyboard), and its’ available from here.