Print out your pictures.
(I got mine from missiekrissie.blogspot.com. Over at somethingijustmade.blogspot.com Cathe Holden has awesome vintage printable labels.)
Cover your pictures with packing tape.
(My pictures were too big for the tape so I overlapped two pieces of tape. If you are doing this make sure the overlap is not noticeable.)
Cut out your pictures.
Place your pictures in warm water. They do not need to be in long. Just make sure the pictures are completely soaked.
Rub the paper off the pack of the pictures. Make sure to rub off all the paper.
You can dry off the back of these stickers and stick them on whatever your heart desires.
Best of all they are removable.
* To remove sticky residue clean with rubbing alcohol.
**Be careful where you stick them, they can slightly stain.