Polyvore is a site where you can do more than just discover fashion trends, pieces, and ideas, but you can put your own collage sets together. These sets may include, clothes, beauty products, decor, or anything else you desire. One can also use their own images in a set along with adding music of their choice.
This site is great for those who love designing layout or want to practice putting outfits together.
Here are a few of my sets.
You can check out the rest here