You should set it up so that people can send cryptocurrencies that are provably burned. Then you could pay something to no one to send nothing to someone.
Might as well send them an individualized clip of a Lincoln or Jackson being set on fire.
https://bitcoin.stackexchange.com/questions/1851/how-to-gene...
Here are well-known burn addresses for bitcoin and ethereum:
https://www.blockchain.com/btc/address/111111111111111111111... https://etherscan.io/address/0x00000000000000000000000000000...
Just send crypto to these addresses and they will be forever lost.
Please. Please send bitcoin here. I promise you won’t get it back.
BTC: 33r9rLTE9b5217rbS4PNDWLQdxJ7WutykU