So, I thought this might be entertaining.
Guess what it is. (object on right)
Answer in a week.
A dime. 
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Bolt with a revnut that has pulled out.
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from the exhaust. threadsert with bolt
Bump!
Clue #1
Year of Cats- 1969 & 1970
Valve stem cap, bolt thread protector.
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Oh, I know that one… that’s because it came out of my car!
You’d have to be blind, not to get this one right! It’s a piece of black electrical wire! Duh! 
Contestant “DWDykstra” has been dismissed from class!
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A rigged oil drain plug 
The jump wire to start the car at the solenoid
Based on the hint, I would say convertible pump fluid fill plug.
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We have a winner item#1
Convert top pump plug!
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#2, burnt fuse jumper wire ? I usually see tin foil wrapping burnt fuses.
Valve stem cap thread chaser.
Seond item 1st clue. Its a bypass for a “dim” light
Is it a jumper to wire a specific bulb in series?
A red neck fix for a broken dimmer switch?
We have a winner. Neil (Badcatt) has hit the dimmer switch. This wire was shoved in the connector for the floor dimmer switch since the switch was bad.
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