Part of a multimedia effort from BBDO/Singapore, these print ads, seen in travel and lifestyle mags, "highlight the hidden dangers of landmines in Cambodia," explains AD Alex Lim Thye Aun, as they drive readers to www.surprisingcambodia.com, which packs an added explosive punch. The ads, on behalf of Think Centre (www.thinkcentre.org), a wide-ranging Singapore public service organization, are intended to convince people to donate their time or money, "so first we had to get them interested in Cambodia," he says. "A very small percentage of Singaporeans currently travel to Cambodia, and in fact very few know much about it