Do you know 'Isaw' or in English Intestine? It was from chicken and pig stomach. But Batter Coated Isaw was from chicken's intestine. You're thinking it's not clean, but it depends on the person making it, if it was cleaned properly. I first tried Batter Coated Isaw in Divisoria, when we are buying school supplies. My auntie offered me to try it, so I take a bite. It was good especially when dipping it in vinegar.
I saw people eating that too, and they said when thy're going to Divisoria, they always eating 'Isaw'. Me too, when I'm going to Divisoria, I also eat 'Isaw' too. It costs 5php per stick, it was cheap and very delicious, I think that is the reason why people keep on eating that.
 You can try it, i think it's not so dirty, but it depends on the place and process also. If you are not fond of eating street foods, you are missing an experience. But if you're health was not sensitie, go try it now!!! You can found it anywhere, just search for it, actually even outside our school before. And it's very popular in some students.