Some call signs from Edwards AFB in the '70s:

Eagle xx --- (F-15 JTF)
Zoom xx --- (F-16 JTF)
Cobra xx --- (Test Pilot School)
Paco xx --- (A-10 JTF)
Rick xx --- (Test Ops)

The call sign was attached to the pilot, no matter what type or tail number he happened to be flying, which probably meant fewer missed radio calls.

I also like Springbok (South African) and LongHaul (Cargo 360).