Goal:
To remove corrosion from an old coin with household goods.
Answer:
Use vinegar, salt and lemon or lime juice.

Goal:
To make a ball of aluminum foil flatter, you could
Answer:
Use a hammer to flatten the ball of foil

Goal:
D.i.Y candle wick using string, wax, a pair of pliers and a pair of scissors.
Answer:
Melt was, place string in it it. Remove with pliers. Cut to the right length and place it in the candle that has the right size allowance for the wick.

Goal:
To hold a piece of wood in place while you saw through it, you can
Answer:
Use clamps to hold the wood steady and in place