Offer a satscard. Deposit some bitcoin on it. It's a great way to offer bitcoin in a physical format by giving the card from hand to hand.
On the back of the card there is a deposit QR, on-chain. You can check the balance by scanning the card with NFC on a phone.
For withdraw only the physical owner can do it by scanning the card with nunchuk wallet and enter the pin code on the back of the card.