thats a great idea! Curious, have you thought of any other "hidden" spots for nfc tags? Was thinking to put one on my nightstand for alarm clocks, but didnt want to just stick it in plain sight. Also had a great idea for any music lovers! Place a tag on your guitar that launches a guitar tuner app, or place a tag somwhere on a drum kit that launches a metronome!
I'm still trying to find a hiding spot for one that I created to turn on bluetooth and open Google Music to play music through my bluetooth receiver, but haven't found a good hiding spot yet.