Bring the fun to your boring morning meeting with the legitimate Lego Build-On Coffee Mug from ThinkGeek. It will arouse your creativity and also fill your lust for coffee. The cup is made with BPA-free plastic and covered in holes and studs while you can attach building-blocks to customize it as you want. The exterior surface of the Brick Mug is compatible with LEGO, K’NEX Bricks, Mega Bloks, KRE-O and PixelBlocks. It is only hand-wash mug and comes in Grey/Red colors. Tinker with a creation while your boss drones on things they think are important. Keep in mind that this mug is not endorsed by LEGO TM.

Available at for $22