These are some wrong guesses...

 

change dropping in a cup

horseshoes

or making a horse shoe

a metal shower rod

skeet shooter

three-hole punch

driving a medal stake

fence post knocker

Magnets

Nail gun

Hammer and Nail

tongs

Metal spinning top (toy)

The popper on top of the Trouble game,
-a clipboard,
-ping pong ball  hitting a pink pong paddle,
-wine bottle cork,
-suction cup  popping
-and a cork gun.