Topping chocolate after it dries?

How would I stick stuff to tempered chocolate after it dries? Would steaming it like modeling chocolate work? Any ideas? I don't want to ruin the temper.
updated by @bryan: 04/10/15 01:47:38PM

I usually have a batch of tempered chocolate on the side and dip whatever I am putting on my finished chocolate. You can do this with nuts, coconut, or whatever. If you do what you are suggesting (steaming) then you will alter the temper and if not, then just ruin the shine. Buy a set of tweezers to make dipping and placing the item on your chocolate easier and neater.

Bryan -

Just a quick technical note to follow on to what Andrea mentioned about the technique she uses: Chocolate does not dry as there is little to no water in it. When chocolate cools down the cocoa butter crystallizes. There are several forms of crystals, and proper tempering ensures that the right crystals set up.

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clay - http://www.thechocolatelife.com/clay/