Some people put up nostr:npub18kpw3akvdsyk239lx0jgwksr74sq4nlha3r8u9g2rnrhztfpfhysy469c4 stickers.

Others go a different direction but both (and more) are needed.

nostr:note1jyw5tfcnxu9ryfj5w23scden8eh392v3xyssadartvnpq8upaf5su0jpfc