One from me:
Sharp Airways, trading as Sharp Airlines, is a south-eastern Australian local operator. They use their IATA code SH, and don't have an ICAO code.
Because RadarBix translates IATA codes to ICAO codes, we need to add an entry to the Airlines table in the database to convert SH to an imaginary ICAO code - I chose SHB which is currently unused.
That's why I named their logo as SHB, being aware that ICAO might issue SHB to somebody else in the future, so this logo will need to be renamed.
EDIT - SHA changed to SHB as per next post