Cosplay Help: Finnish Flag Etiquette

[schizounicorn.livejournal.com]

I am going to a convention as Finland next weekend. Because I cannot find a Finnish flag in any stores, I have decided to make my own. After hemming the fabric, I looked up a bit of info on the flag, and now I am worried that continuing my flag might be a) breaking Finnish flag laws. (I live in the US, but still.) and B) Be disrespectful.
Here are my concerns:
*The dimensions and proportions may not be right, with the flag itself and the cross that I was planning to draw on it.
*The blue paint pen I am using is close to the actual flag's blue color, but a bit lighter.
* When I am not holding the flag for pictures, I will neatly fold it up and place it in a messenger bag. The thing is, I will have to put said messenger bag on the ground occasionally when I sit down to eat etc.


Should I just stop making the flag? I don't want to disrespect a Finnish national symbol!