Sure why not. Here’s an idea that I had that I lost interest in because of required capital investment in a physical product.
I hate giving my phone to people but lately I have to do that frequently either because they need to scan it for whatever reason or they can’t read it or whatever. I wanted to make a credit card sized e-ink card that would mirror whatever barcode or QR code or whatever was required. You give them the card instead of handing over your device. I was thinking about $25 would be a great price point.