This is an add-on board for your Flipper Zero but also a SAO for your electronic badges and much more.
Red Furbymin Theremin SOA DC27 (full assembled) from Harbinger LTD on Tindie
DC27 Taco Drone SAO (fully assembled) from Harbinger LTD on Tindie
This is a SAO designed for Defcon 27 designed to pay homage to the Taco Drone
DC27 Taco Drone SAO (fully assembled)
msFlipper, a Flipper Zero SAO & Badge dev board from Harbinger LTD on Tindie
Galaxia Art Badge 2020 & Free SAO from Harbinger LTD on Tindie
msFlipper, a Flipper Zero SAO & Badge dev board from Harbinger LTD on Tindie
Flipper Zero Protoboard with Lights from Water_Ghoul on Tindie
This Compact Flipper Zero Add-On Provides Badge, SAO Compatibility on Its GPIO Header
Flipper Zero — Portable Multi-tool Device for Geeks
DC27 Taco Drone SAO (fully assembled) from Harbinger LTD on Tindie
Search For DIY Hardware Products on Tindie
Rabbit-labs ESP8266 board for the Flipper Zero from Rabbit-Labs EU on Tindie