Here is my cauldron. It is full of Felix Felicis. For the top "potion" I did short rows and bobbles to make the bubbling. I hand sewed in the lining and the zipper. I am not very brave with knitting and sewing machines.
This is "cast iron." I am going to make a Hogwarts standard "pewter" cauldron and I am going to felt it. Sorry that the photos are a bit blurry.