I was recruited to make some of the official minibadges for SaintCON 2019. This was the hacker labs or SaintCON labs minibadge.
This minibadge had an I2C EEPROM compatible with the communication spec of the official SaintCON badge and had a bus pirate
lab that would give you step by step instructions for programming your name into the EEPROM so when connected to any SaintCON
badge it would display your name.