I saw some camo painted coni buckets and thought it was a great idea to keep the sets low key. The paint odors should be well dissapated if painted early enough prior to season. Won't scare coons off one bit. I've used cans of christmas tree flocking around the holes on my pocket sets before. Sprayed it right around the hole itself to make that big black hole really stand out against the creek bank. Worked great on coons. Wouldn't try it in high traffic/theft prone areas, though.
I also saw some large, plastic drain tiles used for coni sets and the plastic tile sections were spray painted camo. Really blended in nicely in a grassy bank overhang location. Again, I thought it was a great idea for keeping this type of set 'low key'.
Jim-NE