(Mazzer doser filler) Not wanting to keep a mess of ground coffee in a doser? See here a 9-oz Solo drink cup, with six slots cut out of the rim, resting upside down atop the dosing vanes. It acts as a filler to keep the dosing segments from getting loaded up; cleaning requires a 2-second swipe with a 1" soft brush to get the last of the grounds out the chute and into your... whatever it is you do with the last bit. Works like a charm for prepping small amounts (from one espressos to 12-T for a large press) and removes in a blink if you want to grind a mess of coffee. This particular cup has been in regular service for about 10-years.
Love the doser. Wouldn't be without.