Might take a bit to answer if I have to hit the ground running.
this post was submitted on 28 Jan 2025
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What is this thing?
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It looks like a car washing sponge. It could be make reversible to it doesn't pick up abrasive particles when it is unused and left out to dry
Plot twist: It's actually really really large. You drive your car inside, and zip it. As you drive your car, the thing rolls around you and scrubs the car clean.