Yeah just break the bowl off, I roll up 4 or so pipe screens and insert. And smoke like that. You can also use ash and a weed pipe but that's somewhat of a waste as is foil. Steel wool will be harsh af and "chore" as Americans call if AFAIK is not available here.
I'd also advise against IV use of cocaine. It's 100% unsustainable and will more than likely kill you eventually if not fairly quickly. You haven't shown an interest in IV use but if that eventuates meth is your safest option, heroin without a tolerance will also likely kill you.
Stick to smoking your drugs if you enjoy being alive.