"Aiming for a coastal bedroom decor? Paddles emphasize the sea/beach theme and make for great wall decorations. Different size paddles can also be arranged and used as a headboard in a coastal bedroom." Other headboard ideas at the link.
Another pinner exclaimed: 28 Decorating Tricks To Brighten Up Your Rented Home (or college apartments) - I especially like the washi tape picture frames and the DIY photo wall. Nice DIY home decor list.
Celebrate your dorm room - with paint swatches! Create a rainbow effect like Liz Apple's rainbow wall of paint chips or use paint swatches to create waves or patterns of color too! What a great way to liven up a room and make it your own!