Well, the Copic markers smell way less than nail polish!
![Smile](https://www.splitcoaststampers.com/forums/images/smilies/Smile SCS.png)
And they are not banned due to any security/safety issues (the air brush system w/ the pressurized cans of air probably is, though - depends on how astute your TSA rep is that day).
I know that Marianne from Copic mentioned that she often colors on planes. One thing to note if you go ahead and do this, the air pressure difference affects your markers. Once you get back on the ground, your marker can be re-pressurized by holding it horizontally and removing the caps from both ends. It will even itself back out, then. (And this is only an issue for those markers that you actually used on the plane.)
Stephanie, you're so sweet, I would just let your neighbors know that you're going to color, but would be happy to stop if it proves bothersome!
![Smile](https://www.splitcoaststampers.com/forums/images/smilies/Smile SCS.png)