A heavy metal gate squeaking as it opens and closes.
Ball dropped onto a hard surface, medium impact
Slide whistle up and down - wolf whistle
Sound of a ball dropped onto a soft surface, heavy impact
CD jewel case thrown onto pile of CD cases, plastic clatter and rattle
A short panned springy jump or leap.
A high pitched squeak from a dog's toy or rubber duck.
Hitting two pieces of metal together or a metal impact.