This recently opened stall has the best value-for-money pork soup. They have sets Soup Bowl sets as well as a-la-carte Pork Hock, Pork Ribs, Spare Ribs, Innards (including the not so common Pork Tongue!), Pork Skin, etc, where you pick the parts you want with a minimum order amount of $4.

Here, I ordered the a-la-carte one Pork Hock and 2 portions of Pork Skin. I want all the collagenous parts! This cost only $5.10.