You are looking at a drink coaster.  It is a QR code, which if you aren’t familiar with those things, here…crib notes.

I’ve never had ANY use for QR codes, but this is INGENIOUS.

This 3D-Printed QR code drink coaster gives your guests access to your Wi-Fi.  Just scan it and they are connected.

You might be thinking…”Hey, Eric, how the hell do I scan a QR Code with my phone?  Don’t you have to have a special reader?”

If you have an iPhone, just open your camera and hover over any QR Code now…and it will recognize it.  I don’t think Android’s camera will do this, though.

But NON-CRAPPY LIFE PRO TIP:  If you do this, don’t post a picture of your work to the internet.  Even with the guy’s fingers covering it, people on Reddit could figure out his router password.  Oops.

QR codes might be the next Betamax or HD DVD…but I’ll be dammed, I might not be the only one keeping these things alive.

[SOURCE:  Reddit (user now deleted)]