One more thing. I would not roll the items in a big batch of toppings. Break it up into a small batch of toppings,(on wax paper) as you go, or sprinkle the toppings directly on the items, without dipping.
Since the chocolate is warm, some of it it will drip into the toppings, and the toppings will get clumpy, because of the excess chocolate.
I did a stint in a very upscale chocolate store, as part of my externship, years ago.