How do you use QR codes?

In VBS (used to be Atlas), just by clicking the "share" icon in a View, Flashcard Deck or Tour, you can create a QR code to download to your device! Students can use the camera on their device loaded with the Visible Body Suite mobile app to scan and save to their accounts.

Does anyone have good ideas for how to use QR codes in VBS?

I cut and paste one into a lab manual to activate prior knowledge or preview for students when they're completing lab work. Here's a screenshot of the first page of a lab manual by Cindy Harley, which I edited to include a 3D Skull Tour QR code for students to scan: