This coin was on eBay:
https://www.ebay.com.au/itm/117398696119?_skw=2026+Last+post+coin&itmmeta=01M4N0FQH5FZ2HJB9VGQSX5X85&hash=item1b5581f0b7:g:xo4AAeSwiX1qnTGb&itmprp=enc%3AAQALAAAA8CHNgUiiE%2FjQhlDTaMiAde8vZhXiRHAReiWQI0zT6ur%2FT2pT4LZFlrau8gA5DR%2BVPY0aBjx3Ap24MJ2kIkV8Rd8D1GXMY0nR1Qi%2BNT7JUJpVba8ttBx0ku2aSezRvQRiWptYdDIN3WoRZcXlzUDDnHNnLMa5W93%2Fnmd8pOW4V6ssL%2F450vsm0L%2FutrGyED0b1p%2FCSHnjP8T3E%2Bx5w94QC8FqOHvTeVNT0y2Y7F%2BJwvX85HiL2nYTKmybEkCPmXGR5B6wMyxojuHtK8ePicPmCKA7Rex5bmAjXA3qoy%2FcOEKPsAAPOevNtNljYOtkBS%2BoYg%3D%3D%7Ctkp%3ABk9SR-D4vqClaA
(https://i.ebayimg.com/images/g/xo4AAeSwiX1qnTGb/s-l500.webp)
Looks like it will be coming into circulation soon as the bags are on sale on eBay as presale already.
War Memorial ceremony marking 25 Years of Afghanistan involvement was on today.
The Department of Veterans' Affairs will also release a coin to all attendees on Sunday.