This is the dishwasher salt dispenser I was experimenting with screw caps for a few days ago. I can reach into the large, wide-necked jar where we store our dishwasher salt and scoop out a suitable measure. The funnel cap is then screwed on and it can be neatly dispensed into the salt container inside the dishwasher.

I’m pleased with the overall design (model and source file available on MakerWorld), which includes fins to reinforce the transition between the two angles on the funnel. I also experimented with creating my own texture for the outside of the cup. This one is based on a Japanese sangokuzushi design and adds a gentle grip to what could otherwise have been quite a slick surface.