Hi Tracey! I love doing this technique, just an FYI, it won't damage your Copic nibs, at all. I have done this so many times and it's never hurt any of my copics, I actually took this class about this technique at my local art store here in my area and they assured everyone it doesn't do any damage to them, and Copic also sells nib replacements too, if anything happens to any of your nibs, they come in a 3 pack in the different nib styles and it's super easy to replace, I've had to replace a few of mine from my son using them when I wasn't paying attention!! It does take a lot to ruin the nibs though! Super cute card!