Wax paper sticking to homemade taffy - what to use for wrapping?
I have a similar issue with caramel coated nuts that I have been making. What I have found works well is to place the nut clusters in a large bowl (which has a lid) containing a mixture of powdered sugar and cinnamon, seal the bowl and shake 'vigorously', remove the remaining powder and shake again. 

In your case you may not wish to use the cinnamon, and perhaps only cornstarch rather than powdered sugar. The powder coat will provide a non-stick barrier to your taffy, which should be only slightly sweet (powdered sugar) to neutral (cornstarch) and dissolve in the mouth very quickly. Depending on the flavor of your taffy you may find that adding a touch of cinnamon (or perhaps powdered ginger) might provide a bit of 'extra flavor'.