I posted this on Trainboard so I figured I'd try it here too. I recently saw a thread where someone developed a handy ballast application tool made from a film canister and some other stuff. I had a thought about a similar idea and wondered if anyone had tried it. Most of us, at some point, use Elmer's wood glue on our layout. Unlike the white glue, the wood glue bottles have a slot opening on the ends. If the bottle were cleaned out well when empty, I wonder if it could be filled with the ballast of your choice and used to apply ballast to delicate areas like turnouts and such. Anyone ever tried it??