I am not in the US or Canada, so I had to download the files and take them to a printing store.
1 square meter worked out about 72000 #sats (R370 South African rand)
That gave me enough to start sticking nostr:npub18kpw3akvdsyk239lx0jgwksr74sq4nlha3r8u9g2rnrhztfpfhysy469c4 all over Cape Town