ThinkGeek Life Bar Magnets

These are hard to find anywhere now so I can’t find a good description but the way they work is you charge them and then stick them anywhere (the magnets are removable) and you can see how far apart they are. The amount of hearts that light up depend on how far apart they are so one person can take one with them and someone else can keep the other one and be able to tell how far away the other person is. It’s a very cool concept for long distance couples or friends who travel often! They recharge via usb cable. I’ve never used them so I’m not sure how far apart you need to be for the number of hearts to change. They resemble the 8 but heart containers from games like the Legend of Zelda!