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[Challenge-Solved!] forgot to upload before work yesterday...
(sh.itjust.works)
Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
Is it for cleaning shoes or preventing the floor getting dirty?
First one! Cleaning shoes. You appear to be the first person to guess without cheating!
Ahh I was close in my thinking. I've seen similar things for cleaning dog paws when they come in from the mud.