Straight razor with green, orange and red diodes
Just letting my imagination run tonight & I suddenly envisioned a futuristic straight edge razor, perhaps made in a secret skunk works at TI or Dovo, one with subtle diodes built into the scales, and nano sensors in the blade's edge... Fully honed to perfection: green diodes on; in need of 75 turns at the strop, orange diode blinking; and dangerously dull, flashing red diode on high alert.
Of course my futuristic blade would also plug into an iPod for backup power, & a deluxe version would have micro speakers, or perhaps a voice recorder.
Other ideas, or is this just too much?! :)