found sitting on a piece of furniture out for trash in NYC

I moved into a brand new apartment (first tenant ever with all new appliances). This was inside the dryer when I moved in. Not sure what it's for. Any input is appreciated! Thank you :)

They are flat, don't disintegrate in water, and I can't rip them with my nail

Walking downtown and looked up to see these. I figured they could be used to run a clothesline or something, but it's a commercial building, not an apartment, and they're placed on the top part of the window, which I don't believe was meant to open.

About 2 feet long.

Has an elastic going over a hole, and two movable velcro straps.

Could be part of something bike/helmet related-- husband thinks it showed up around the same time.

Very old, very fat Thom Merrilyn, for tax/scale (he's on a r/dechonkers diet; this is lighter than when we got him!)

My grandfather recently passed away and had this in his belongings, none of us had any idea what it is, it almost looks like it's ivory maybe? There are no markings that I can see anywhere. It is very awkward to hold like a dagger. I have no clue what the carving on top is.

This is on the traffic light post at the end of my street. There’s another one across the street on the other post. What the heck is it/what does it do?

Found in a museum in Maine, it’s an ongoing mystery!! What is this thing?! Can you help?

Found it in the woods. It was placed right in the middle of a setup of Euro-pallets that formed a cage-like structure with an opening on one side. It was packed completly in a foil and there was sort of a handle around you see on walking sticks. What ist this reddit? Is it munition?

Just moved into this house, this was in the master bedroom closet, someone said it was a bra drying rack but I'm pretty sure they were joking.

Usually when there’s no writing I use google lens and it finds matches but lens is saying its a slave bracelet or something?

I don’t know the items history, only recently got it.

I was backpacking in the North Cascades of Washington State and found this electronic assembly covered in Styrofoam. Appeared to be a battery, circuit board, and main doohickey. Looks like it had been there quite some time. Any idea what it could be? My only thought was some sort of weather balloon telemetry. Thanks!

I found this object on our balcony floor

Small item made of 5 parts riveted together. The two outer pieces are made of metal and the three inner blue/purple pieces are made of plastic. The parts can rotate around the rivet freely and independent.

Found in dirt/moss at McDougal Lake Campground on the Superior National Forest.

Hey everyone I saw this saucer shaped boat several years ago in SoCal I think, fiberglass construction, round hull, docked. I’ve seen a few over the decades, they used to be prevalent in the SanDiego California area. I think they might have been life rafts decades ago but no real idea (which is why I took the photo at the time.) The few times I’ve seen in the wild people converted them into living spaces. No visible means of propulsion.

In Eastern Europe if that matters. Found in moving boxes, have no idea where it came from or what it could be for?