If I remember correctly:

Entering Malaysia (long haul arrival early morning) - transfer to LowCostTerminal (thus, had to enter/exit) - flying to Singapore, immigration to pick up luggage, so again, entry/exit stamp, then flying to Macao (they had super-cheap sales on an airline I forgot it's name) - then continue to HK for the night by ferry. I think it was 7 stamps in 1 day.