A tip jar that works without an app
A PayPal.Me code is the simplest way to accept money in person without a card reader. Someone scans, the amount screen opens, they pay. It's become standard on busking cases, market stalls, craft fair tables, community fundraisers and the bottom of freelance invoices.
Add the amount to the link if you're selling something at a fixed price: paypal.me/yourname/15 opens with £15 already filled in. Paste that full URL through "Any link" and you have a per-item code that removes the most error-prone step.
Print quality matters more here than anywhere else, because a failed scan costs you a sale on the spot. Use the SVG, keep the classic dark-on-white styling, and laminate anything that lives outdoors. And check the name on the code is yours before printing a hundred of them.
Everything happens in your browser. The QR encoder is built into this page, so your payment link is never sent to a server, nothing is logged, and there's no daily limit. The code is static — the link lives in the pattern itself, with no redirect service in the middle that can expire, start charging or go down.