The most brutal alarm clock

A transparent material, a bright display. From the appearance, this is a fashionably designed alarm clock. So why say it's brutal? The reason is that you need to put a hundred dollar bill inside in order to turn it on. Maybe it could also be used as a banknote detector? That's not the main point. The main point is that if you still ignore the ringing of the alarm bell, hehe, it will extremely brutally shred all the money into pieces, leaving you with nothing but some utterly shattered dreams~~