A quick but sturdy print bed scraper that's intentionally long with open infill so that you can also use it to swipe at the purge material. It will catch in the infill and drag away cleanly.
To fit the Prusa Mini use the 3mf and scale to 95%
Someone shared a Make of theirs with a color change. Looks really good.
Edit October 2, 2022: Created Version 2. Minor changes to the design plus an included color change. The pictures of the black and silver scraper are V2.
The author marked this model as their own original creation.