"As far as the after plating polishing fun, thinking of making a polishing tumbler like you would use for rocks. Fine sand? Soda? Like it says in the first article, the polishing phase removes some of the plating, so you dont wanna over do it.
Intelligent replies welcome. "
Walnut shells. They are not as abrasive as sand or soda but do a nice job of polishing. Available at harbor freight or any where that sells reloading supplies. Larger items and odd shaped items may not "tumble" very well. For that you need a vibrating instead of rolling tumbler like the ones used for ammo reloading.