|via Google Images|
Photo to laminate or laminated photo
Promotional Magnets/Bumper Stickers/Magnets from businesses or Magnetic Tape
Packing Tape (if doing DIY Lamination)
Once you have your laminated picture, you just need to glue your magnet onto the back of the photo, unless you are using the tape which has a sticky side to it. I would recommend giving the whole back part of the photo magnet.
From strongest to weakest hold (all will work though):
There you have it your magnetic photo!
Lay out a strip of packing tape and place photo face side down on top, then lay out a second strip of packing tape on top covering up the blank side of the photo. Trim as needed.
Enjoy plastering your fridge with photos of your family, use it for a pictorial menu board etc.
PS-Although some people might say you can use magnetic photo paper, I didn't see too many with good reviews which is why I didn't suggest it. This following product while not only for photos, seemed to have good reviews and is multi-functional.