As already said in the other thread;
Baby - BMI
In the beginning I can remember that there were some ATCO's that kept on calling them Midland because they didn't want to emberass the pilot.
Elite was a nice callsign belonging to Canada 2000 - CMM
Relax (ESK) is a nice one as well unless you are trying on the 121.5 to prompt them to call in
And since we saw some waypoints passing by;
DVR - Dover; some pilots just can't resist the Over Dover Over.
A direct route; KOK (KOKSY) - DIK (DIEKIRCH); some insist on reading back KOK-DIK (I wonder why?)