I'd even add a time factor then. Use case: - Print a QR sticker, every 100 blocks replenish the faucet with some set amount of sats. Make them available for claim for the first n users. - Stick it somewhere in the streets. On the public transport, etc. - Or listen, my dream use case which I though...

Faucet is good too, but for hotel tipping gotta be different codes as there might be more than one unclaimed tip with different amounts.