This very attractive ornaments you see in this foto,(apart from the girl's hideous back) are shells, usually made of Capiz which Phils. are very well-known of.
Not to be confused by Capiz as a province, it's a material that's sort of similar from the Mother of Pearl. They're transparent mollusks which are also known as windowpane oysters. It can be used in many ways but mostly, it's famous for its chandeliers and illuminated decorations such as the famous "Parol". the star-like shape on the left.
If you want to look for affordable stuffs like these, you should head off to the underpass of Quiapo where it's located.
What they sell here are mostly authentic although haggling is still the best way to get a good value.