Gallon Funnel

I have funnels. I even have really big funnels. But I want a big funnel that perfectly fits a gallon and half gallon Jug. I put the fun in funnels, if you are interested in how to get things in to containers, then look at my fun with funnels collection. https://makerworld.com/en/collections/5453673-fun-with-funnels