Your username, from your Venmo profile.
Without the @. You can paste your profile link.
In US dollars. 0 lets the payer choose.
What the payment is for. Notes on Venmo can be public.
Venmo only works between US accounts, in US dollars. The amount and note fill in when the link opens the Venmo app on a phone; on a computer, Venmo may show just your profile.
The link the QR code opens, part by part.
Profile link
https://venmo.com/u/maya-chen
Payment link, $20.00
https://venmo.com/maya-chen?txn=pay&amount=20¬e=Pottery+class+%F0%9F%8F%BA
The payment link fills in $20.00 on phones with Venmo. Venmo no longer documents this, so test it before you print.
Venmo's own app also has a personal QR code under Scan. This one is the same idea, as a file you can print or put on a slide.
Free Venmo Link Generator by Hiyaly