I've been using paint.net to teach camouflage patterns (and basic image editing) for a middle primary class.
We have used the tutorial found here (http://forums.getpaint.net/index.php?/topic/13380-camouflage/) and looking to do something more. My original aim was for the students to make their cam pattern, then make a object (eg person, car) and fill it with the pattern they made. Then put the now camo'd image into a background picture suitable for their type of camouflage (eg jungle backdrop for green/green camo).
But I cant work out how to do so with paint.net. We've used the selection tool to put circles of the pattern into the backdrop, but would prefer a more complex shape/picture.
Also, any other interesting ideas or suggestions to do with camouflage with paint.net would be really appreciated.