Plenty of people enjoy coffee and a good many enjoy LEGO too, so it was only a matter of time before the two were combined. The Build-On Brick Mug is a coffee cup covered in studs and holes that attach to LEGO and other building blocks to customize it however you want.
![The blocks can be combined to customize your cup of coffee any way you want](https://assets.newatlas.com/dims4/default/de81a22/2147483647/strip/true/crop/650x571+0+0/resize/650x571!/quality/90/?url=http%3A%2F%2Fnewatlas-brightspot.s3.amazonaws.com%2Farchive%2Fbuild-on-brick-mug-lego-1.jpg)
The mug is compatible with LEGO, PixelBlocks, Mega Bloks, KRE-O, or K'NEX Bricks – but you'll have to provide those yourself. The blocks can be combined to customize your cup of coffee any way you want. You could construct an attached plate to hold a doughnut, for example, or work in some LEGO Mindstorms to create your very own robotic coffee mug.
![The mug can is compatible with LEGO, PixelBlocks, Mega Bloks, KRE-O, or K'NEX Bricks](https://assets.newatlas.com/dims4/default/f2c170a/2147483647/strip/true/crop/600x600+0+0/resize/600x600!/quality/90/?url=http%3A%2F%2Fnewatlas-brightspot.s3.amazonaws.com%2Farchive%2Fbuild-on-brick-mug-lego-2.jpg)
One possible drawback is that the odd shape (along with the risk of having a LEGO minifig end up in your nostril) could lead to spillage. Also, while it has no problem holding hot drinks, the mug is not microwave or dishwasher-safe.
ThinkGeek is selling the Build-On Brick Mug for US$19.99.