Misfits X Junji Ito Skull T Shirt. Shirt is awesome and customer choice shirt. The shirts and hoodie are actually available from CLothfury,
If you don't feel like going to the site with an untrusted cert OP was active on a thread which was a spinoff off pwnagotchi called ESP32 which can do wireless pcap and handshak capture. Probably what the site linked talks about pending OPs clarification.