Shredder,
I do not build my own and those you made look great! Let me tell you what I do with my store bought cameras for camo. I take a bucket and walk through the woods and pull off small bits of white and red oak bark. White Oak works the best. I bring them home and turn them upside down to dry(on my deck). Once dried real good, I use a hot glue gun and glue them on the unit...all around...to look like a tree. It really is a cool idea and you can easily remove both the glue and bark peaces. I have actually walked past my camera before when trying to locate them.