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.

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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.

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.

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