
I've come up with five different ways to make a micro security camera that look like your reference image.
I'll run through the different methods in the image above from left to right 1 through 5.
Far left camera 1
Tile, Round 1 x 1 in black (the lens), Brick, Round 1 x 1 Open Stud in white (camera body), Plate, Modified 1 x 1 Rounded with Handle in white (the mount), all held by Plate, Modified 1 x 1 with Clip Horizontal (or part 6019).
Camera 2
Plate, Round 1 x 1 in black, Brick, Round 1 x 1 Open Stud in white, on Bar 1L with Towball, held by Plate, Modified 1 x 2 with Small Towball Socket on Side
This is the only design here that always rotation on more then one axis, which can be a big plus.
Camera 3
Plate, Round 1 x 1 in black, Brick, Round 1 x 1 Open Stud in white, on Bar 1L with Clip Mechanical Claw held by Plate, Modified 1 x 1 Rounded with Handle
Camera 4 (my favorite)
Tile, Round 1 x 1 with Bar and Pin Holder in black, Bar Holder with Clip in white, held by a Plate, Modified 1 x 1 Rounded with Handle
Just two pieces and looks great.
Far right camera 5

Two Plate, Round 1 x 1 pieces (the lens and body length), a Tap 1 x 1 in white for the body and mount. The camera assembly is held by a Plate, Modified 1 x 1 with Clip Horizontal (or part 6019).