I have a very tall stainless steel dosing collar from CoffeeSensor on Etsy CoffeeSensor
I had searched everywhere to find one that is tall enough to keep the stray grinds in the basket while grinding. It needs to encircle the NZ chute. This did the trick, though it is thick and heavy. Which means it does not virbrate or move while grinding.
Here are some pics, from my post on WDT Pics