In Afghan i had a WITCHCRAFT c/s which was simply awesome. The FAC / JTAC guys were all called WIDDOW, our EOD guys were BRIMSTONE, the Medivac was MORPHINE and our apache call signs were UGLY. there's more but these are the only one's i can think of...
.. and will get past the censors.
Our field medical team was assigned the call sign "MEDICS", but the mechanics kept responding, so I got us as "BANDAID".