Yes it is a fully functional block of lego that is compatible with lego building blocks. Yes, it is also a fully functional BPA-free plastic coffee mug. If you are looking for a fully customizable coffee mug like no other on this planet, look no further than the Build-On Brick Mug. Since it is compatible with almost any type of lego box, the design possibilities on this mug is endless. I dare say that this might be the best $21 you would ever spend. For more details and product info, visit its page on Amazon.com.
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