Philippine alcoholic beverages have traditionally been made in backyard operations and you couldn't get any unless you went to the regions which produced each kind. A few companies now produce them commercially, both for local consumption and for export. This bottle of lambanog in a woven wicker bottle holder is available at Kultura, located in all SM malls, and makes for a great gift and souvenir.
Lambanog is produced mostly in the province of Quezon from the sap of coconut flowers which is cooked, fermented and distilled. Do not ever make the mistake of serving or storing lambanog in plastic containers—its alcoholic content is enough to melt plastic.