Gardener's soil funnel for paper pots and seed trays

Paper pots made from old newspaper are a great sustainable device for the hobby gardener to seed one's plant in. Whilst making the pots goes easy and quick, filling them with potting soil can be fiddly when using smaller sizes. That is where a funnel is usefull.

I bought a "Paper Pot Maker" by Burgon and Ball. Mostly, because it offers three different sizes in one pack, but this really does not depend on any special product. Just the size is perfect for the middle size of this: https://www.bu