If you want to pay a little money to have it done professionally there is a company that will apply the pattern permanantly to dang near anything they can fit in their camo tanks. I will look for the link for you. I thought I had it saved in my computer but I cant find it.
I'll look and in the meantime maybe someone else might know who it is and post it for us.
OK I looked and couldn't find the company I was looking for. They don't use any of the trademarked camo patterns. I did find these links for the same thing but with the trademarked (more expensive) patterns.
www.trebark.com under their second skin section
www.activecamo.com
www.kdgunsmithing.com