last 747 flight path, was this hand flown? How was this communicated with ATC?
I don't believe anyone could hand fly something that precise.  A series of waypoints could be entered in the flight plan in a "connect the dot" manner, then the autopilot could be put in NAV mode to fly the pattern.  Nothing that difficult about it though, it would just take some time. 

If they are at 10,000 feet this could be done under VFR, in which case no "ATC Procedure" is necessary.  I am pretty sure though, that the flight would have communicated their intentions with ATC.

I am curious about area just off the end of the pointed nose.  I am guessing that they flew past this point and made a reverse turn, effectively creating a loop in the depicted track that is cut off in the picture.  Do you have a full screen shot showing this?  Because if it isn't there, then this was either all photoshopped, or flown, then the loop edited out later.  A 747 can't just turn on a point...