“Plastic strap on cotton swabs. Unidentified object received in a recent order from online shop.”
Answer: I think they are supposed to be a gag. You put the rubber part around your ear and it looks like you have a cotton swab sticking out of your head.
“Metal shards inside the shower head of the place I’m renting. What are these and why are they in there?”
“What is this object at a restaurant construction site with a handle on top?”
Answer: “Airflow meter for heating, ventilation, and air conditioning to help balance the system”
“What is this loop inside my coat, next to where the sleeve is?”
Answer: It’s for the belt.
“These weird tweezers. Probably a kitchen tool.”
Answer: Looks like it’s for squeezing lemon pieces to catch seeds.
“A weird set of cards I found — there are a total of 44 cards, the holes and the suits seem to be in random positions.”
Answer: I think it’s a Gaff Deck for magic tricks.
“A new bra I bought online has a ’microchip’ inside of it. It looks pretty fake to me but can’t pinpoint what it is exactly.”
Answer: New age “healing” stuff, like the magnetic bracelets and such.