Nissan Keyfob Hide-A-Key by InnovationByLayers

Last crawled date: 4 years, 7 months ago

The key clips in and you can magnetically stick it to a discrete place on your car. I'm using it to hide my key during runs.
Disclaimer: as pointed out in the comments, if a thief finds your key, you will not be able to claim any insurance money, so be careful!