A group of Slovak, Hungarian, and Serbian amateur radio operators used the OM0A contest QTH for several contests in early November. In addition to the OM0A call sign, you could also pick up several other call signs on the air, though this sometimes looked quite comical:
Silent Key Memorial 2012: 54 contacts, 180 points
OK/OM DX Contest 2012: 1,342 contacts, 1.673 million points
WAE RTTY Contest 2012: 167 contacts, 83,000 points