Everyone who has an old Optimus stove complains about the pitiful disposable tin prickers based on the original Optimus model. Optimus is all about being on the opposite end of disposable. A kerosene stove jet is going to clog, and will have to be cleaned in order to function. Those clever Brits have an answer to that problem.
Above is a nice sold brass pricker with replaceable needles. Even better is the fact that the end that holds the needle in place is also machined out to serve as storage for spare needles, and this device comes with twenty. That’s probably enough for a pricking lifetime.
Anyone can buy these on fleabay, or at Tilleylampsandstoves.com. Julian Shaw, the owner (not the actor) sure knows his stuff. Just don’t order things during a heat wave in England, if you need your pricker ASAP.