Copper Cauldron

You need to buy everything on your shopping list before you can purchase this item.

''You can use all sorts of weird and wonderful ingredients in this cauldron, from silver unicorn horns to minuscule, glittery, black beetle eyes. Please note: depending on how the potion is made, some cauldrons are faster at brewing than others.''

(Source: Pottermore)

This Cauldron can be bought (Size 2) from Potage's Cauldron Shop in Diagon Alley, at a cost of 25 Galleons.