I cannot play those, ive tried. My dad can do it though

Jew's Harp actually, but that looks slightly different (don't know why it's called a Jew's Harp... no doubt antisemetic, but that's what it's called.... not a jaw harp).

Haha, I've been wanting a jaw harp! They're like a dollar on ebay, don't know why I haven't gotten one....

ive heard it called a jude harp.

I don't want to brag (I'm bragging), but I've got a Jew Harp that's been touched the one and only Fred Penner.

Anyhow, I don't think that's a jaw harp; at least it's different than anyone I've ever seen/played. It's definitely has a similar tone; maybe it's a geographical variation?

Yes, it's jaw's harp, but slightly different, it's called DAN MOI. Dan moi harps are played by pressing them to the lips, not the teeth. They are Vietnamese origin.

P.S: i see, that posts are two years old, but maybe some stranger will curious and this will help him.