There are lots of ways to make your posters look creative, like when you are putting up new posters on your wall. Put up sayings that you like and put what it is, like if you are putting a poster up of your fave celeb then, be creative and draw out in big letters with, either colorful paper or special writing or whatever you want to use is fine, then color it all in with your fave color and then place it were you want it, also you can create some designs you like that go with the theme, like I'm putting mags signs as my design from the different mags that I got them from. The way I did that is by cutting out my Design after I colored it and finished designing the drawing, then I put them on the wall where I want them.
Another cool way to be creative with your posters are by doing a scrapbook of them.
You can cut out your fave things, fave celebs, fave artwork, anything you want. You can use mags, or print out stuff by using your computer or photos you like.
There are so many ways of scrafebooking now of days, but the way I do it is by using a photo Album and I use that. Make sure you are using the sticky kind of Album, if not you can always tape the back of them, but if you can get the one that sticks. That would be better.
Then you just place them were you like and you have a scrafebook full of your fave stuff you like and you and your family and friends can enjoy.
Well I hope some of these tips will help you out, and remember be creative when putting your posters on the wall or making a scrafebook of them.