Analog Car Finder

Ever found yourself wandering through a parking lot, unable to remember where you put your car?

Here's the keychain to solve that problem. (and you can customise it to suit your needs)

Stack wheels in your keychain, and record your parking spot number, floor or a memory hack of some description (each memory works differently, sometimes numbers aren't all that helpful).

There are four different sizes, and three wheels : numbered, with symbols or just empty (paint it with different colours for those pesky colour coded parking lots). Stack it with spacers between each wheel, glue the top, and hang it on your car keys keychain.

Problem solved!