I'm sure the marbles were great for your neighbors lawn mower.
1boner that so reminds me of what I did...although I went a different route..... I went and trained the Neighbors dogs for her....she would let out her two dogs, both big loud dogs at 4 in the morning...so I ran out to my third floor porch facing the back yard...with a fist full of marbles and a wrist rocket...as soon as those dogs started barking I laid into them with the marbles got them running in circles around the yard, they stop barking I stop nailing them with marbles, it took 3 days before the dogs would not bark when they were let out.....
I wonder if this would work with the idiots that live above me and their rap music.
"look at me I am making a derogatory remark to the OP"