The last time I was in Thailand, I hoarded packs of Nestea's Thai Milk Tea. A friend told me it was good. I tried it and I totally agree with her. It was a bit sweet, but Thai Milk Tea is naturally like that. Nestle, if you are reading this please bring this drink to the Philippines!
We bought a 13-piece pack at around 90 Thai Baht at the time, which means that each piece would cost around 9.5 pesos when converted using the current exchange rate. Not bad!