I had the same thought, but I'm actually confused as to where and what it belongs to. I have been putting towels, cleaning products and some aerosol sprays into the hatch but nothing with a plastic attachment. At first I thought it was some sort of drainage device. Got me stumped for sure.
Wow great minds think alike...I had this same item on my Amazon wish list. Actually I'm looking for one like this with a red "CIVIC" printed on it, because I already have red "Civic" head rest pillows, red "Civic" seat belt pads, and red "Civic" door floor board stickers. See a pattern here? lol
Just curious... did you chrome delete the exhaust tips with the 3M 2080 Matte Black Vinyl as well, and was that hard to do, or easier than expected? Nice job on everything, by the way.