Random USB caps locker   Google as a password cracker   Toilet
terror level indicator  Normally, this wouldn’t quite make my
radar, but [sprite_tm] built it, and it’s funny as hell. He
created a Terror Level indicator for… his toilet. Rather than
create an exotic smell detector, he simply uses a photo diode to
measure the amount of time that the light has been on in the ol’
water closet. As time progresses, so does the Terror Level
indicator. To make an audible indicator, he used the PWM
generator in the ATTiny231to create a sort of ping sound when
the level escalates. (I can definitely think of someone I need
one of these things for.)