What you will need:
String// small pegs// 2 screws// screwdriver// polaroid photos
Firstly, measure where you want the photos to be. I just eyeballed it when I screwed in the first screw (don't screw it in all the way!), but then I did measure it more precisely with a level to have the screws on the same line.
Next take the string and tie it to the screws. I wanted it to hang a bit more loosely, so I didn't pull the string too tight.
Then just take your photos and hang them on the string using the pegs. That's it! A simple DIY to add a personal touch to your room.