“I found this strange foam shape on the side of the sidewalk. The bottom part is pretty sturdy but the top part with all of the holes is very squishy.”
Answer: “Half of a Magic barber sponge brush”
The @$$ box is a reality in every hospitals break room. It serves for a lot of giggles. :)
..same for #13, #14, #15 and #16
An air diffuser? Oh thank god, that's really not what my first thought was and I was scared...