Channel 4 has been showing adverts names »Difficult is worth doing« introducing skydivers jumping from an airplane and make formations in freefall and one canopy formation.
It columnated on May 29th 2008 when a live TV add was broadcast from the Spanish DZ Lillo at 20:10 local time (CET). After exiting the aircraft 16 jumpers made 5 consecutive formations in the shape of letters H-O-N-D-A.

Here is a flash film on the Honda Accord website made about the advert.

A documentary on the whole project was made. See it by clicking the Youtube link here.