It has a small cost (30$) for large HD download but you can already get a good rendering
Vibrato - Transform your favorite sounds into unique works of fine art
placeholder.pics - Lightest way to include placeholder images in your design
Visual Beat - Interactive music video
PlaceKitten - Dead-easy placeholder images. Of kittens.
Owlead - Grow your Twitter with valuable followers, effortless
Fill Murray - Custom-sized placeholder images of Bill Murray