Remove the existing backing out of the pre-made frames.
Apply glue around the border of the frame.
Glue two pieces of white cardboard together.
Glue the piece of white cardboard inside the frame.
Use a permanent marker to mark where holes should be drilled for each of the hinges to attach the two frames together.
Use a small drill bit to drill through the marked holes.
Use a precision Screwdriver to attach hinges to each of the frames using screws.
Apply glue to the opposite corners of the picture frames from the hinges. Attach magnets to the corresponding corners.
Place a photo or drawing inside to complete!