Some of you may not be aware that your local DIY or hardwear store will have these caulk guns for sale, they work perfectly as a clay extruder. See link 👇 saw this "No Nonsense Foil & Cartridge Applicator Gun" and thought of and extruder 😍 here it is on Amazon https://amzn.to/40JnpsB price has increased slightly but still the cheapest option x