Some of my favorite toys: xmr.fan/beat Listen to an address. The checksum is the tempo and key, the spend key the melody, the view key the bass. All runs locally in your browser.

Looks good. Just made a qr code!

This is very cool, love it :D

Nice design, reminds me of Flipper Zero.

Nice

Really cool site!

If there's a QR generator in the mix, the monero: payment URI has a wrinkle: some parsers extract only the address and ignore the amount and other metadata, and old versus new Monero parsers have read the same URI differently. A plain address option alongside it is worth offering.