ORIGINAL: MinnFlyer
I have done it both ways (Cutting them out of the blue and placing them on top) and placing them on top is much easier. What I do is to use MonoKote and the Windex method. Then the next day (or when it's dry) go over all of the edges with a Q-Tip dipped in Acetone. That really holds the edges down.
I have not tried the Acetone, but I will thanks for the tip.