This genius LEGO Card Shuffler can automatically shuffle any deck of cards - Yanko Design
Briefly

It seems like a laborious activity that almost always causes one or two stray cards to fly out and fall on the floor... Pedro Lara built himself a LEGO Ornate Card Shuffler, using LEGO Technic gears for a consistent Riffle Shuffle, solving the issues of traditional shuffling.
The 'black box' has a variety of golden trims that add an aesthetic touch to the contraption... The card shuffler utilizes LEGO Technic gears and rubber tires to automate the Riffle Shuffle, enhancing both functionality and appearance.
Read at Yanko Design - Modern Industrial Design News
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