Best way to mount fake cameras ?

I too had a few dummy cams installed on my house and when I had the guy come out to install the real thing, he laughed when he saw what I had. I installed 5 new outdoor cams and he had 3 broken cams in his truck so he mounted those also.
If you do go the fake route, DO NOT put the battery in it so the light flashes. No real camera has a flashing light!