Thanks to the world wide web, we can find answers to literally any question within a matter of minutes. For those moments when Google can’t come to your rescue, trust the wise folks of the internet to have your back. Like when these people found strange objects and had no idea what the purpose of their existence was, the mystery was solved by strangers and amateur detectives online. Ready to be amazed? Take a look…

Doggy Decoding
If you’re a dog owner, you know that dog collars usually have their name, an address, and a contact number to call in case they’re ever lost. Sometimes, they may have a cute trinket or charm but that’s about it. The OP was very confused (and rightfully so) when they spotted this plain disk on the collar of a pooch at daycare.

The strangest part was that it had no information on it, not even a logo. According to internet sleuths, this is actually a key to a doggy door. There’s a sensor on it that opens a dog flap just like a small electronic garage door. How clever!