The Kuwait Amateur Radio Society launched a special call sign "9K2KCBB" celebrating "World Blood Donor Day" on June 14th every year.
The QSO operation for the special call sign will start every year on 13-June to 15-June
Mode used: SSB, CW and RTTY
QSL info: Direct to 9K2RA
Source: http://www.hamradionews.net/2012/06/9k2kcbb-special-callsign-for-world.html