It's a testing chip. It goes through the metal detectors to ensure they're working.

It's Stafir Móti Aðsókn an Icelandic magical sigil/stave to protect against ghosts and evil spirits

the roof plate of a drum fish

An apprentice final piece before becoming a journey man engraver.

It's the top (closure part) of a purse or small handbag.

It's a part of a ring worn by someone important on one of the shipping companies in the 18th century

It looks like a plantation/planters chair.

Before construction, they are required to look for sites of archaeological interest.

Sugarcube holder.

These were how old reflectors were made, like for railroads

Pieces from an art installation.

I think it is a light sensor that can be turned on and off.

It's a so called "Schultüte". When children have their first day of school, they get it filled by their parents with gifts and sweets

For blind people and their walking stick.

Looks like an Artist’s Cabinet or Flat File. It’s a set of drawers for storing drawings, architectural plans, etc.

This is a thermometer. Look at the number where it aligns with the convex (upper) portion of the plane, that should be the approximate temperature in Fahrenheit.

Looks like a polypore fungus that is exuding excess moisture, called guttation.

It's called a germ key

It has a pot that goes inside it that has holes in it - like a strainer. You put the strainer inside the “sink” and then toss your items that you want to boil inside the strainer and cover it.

Yea ! It’s a thing ! Called trench art , google it there will be tons of beautiful engravings on shells

It looks like a Davis Quadrant or Backstaff, a navigational instrument predecessor of the sextant. Maybe you should take that to a museum, with nautical expertise

Magic Lantern glass slide

It’s a bee and bug house, it’s filled with different materials for lone bugs to overwinter

Water level indicator - limnigraph

crab pearl

it is a 3D maze.

Han Solo’s lucky dice

It's a herb grinder (mostly for weed).

Those are used in a ceremony when crossing over the equator.

Hasbro produced a Monopoly mini-game in 2009 called Monopoly: Get Out Of Jail. It looks like these were the game pieces used.

Picking out specific targets for ground police. It’s easier to track an individual through a crowd from above.

It's called an expansion loop. Coaxial cable (for cable tv)

He's partially deaf. It's basically a giant hearing aid (sound amplifier headphones).

These are jyotish tokens with the Rahu yantra to be used for a Rahu Ranga Mantra recital and practice. Likely for personal gain.

This is sort of like the way you would package mushroom spores. Golden teacher aka GT is a popular strain of psychedelics

A home near where I grew up was built with a berm around most of it to save on heating and cooling

Looks like a scriber. They're used to make lines or marks on metal, wood, or a number of other materials.

It’s a Masonic Square and Compass! You’re supposed to spin it really fast and you can see it

Sea hare eggs

I believe those are rattles that you can put inside of fishing lures so they make noise to attract fish