Kids are creative. Be sure to capture the creativity your own kids show. For this photo, I maximized the size of the floater in the frame by turning the camera on an angle and moving in close. I kept the border of the frame as clear of lines as possible for a clean look. Lighting is from a late-day sun.
Camera and Lens Settings
24mm f/2.8 1/800s ISO 100 5760 x 3840px