Thanks for that info, JD_mudbug. Much appreciated.
Yes, the smaller size blade that I intend to use was part of my concern. It seems like it might get thrown out of balance a little easier than a larger one (if the powder paint was indeed going to be an issue).
I'm a big fan of the black nickel blades, as well. My only concern is that this spinner will also have a black body, and I wish for them to have a matching finish (I intended to powder paint the body using the same paint, ensuring that they would match).
If I could find a source that had matching black nickel blades and brass bodies for a reasonable price (I will be looking to purchase 1,000) I would definitely consider going that route, but if I could save a considerable amount of money coating them myself I would prefer to take that road for now.
I have also been toying with the idea of using a black blade dip, baking it and then spraying it with UV Blast. I'm not sure how that would look/wear over time, however.
My main goals are to have a matching black finish for both blade and body that is consistent and durable, but also one that does not cost me an arm and a leg to produce. Time/labor to produce them is not as great a concern.