I scraped a ton of Nintendo 3DS street pass relays from all over the world and used some homebrew code[1] on a pi to rotate to a new item in the list once every few minutes, which provided me an endless amount of street pass game data. Nintendo shut the relay servers down in early 2018 though, effectively killing the homepass community, so that's all in the past now. Too bad because my kids are sitting right here playing 3DS and they can only streetpass with each other.

[1] https://github.com/danielhoherd/homepass