The Cai and Jo Modern Muse Collage Kit ($44-$69) comes in small or large sizes and contains 25 to 50 posters, depending on the one you choose. We're obsessed with the light-pink aesthetic ourselves.

simply type "shell" and select the color red. It's really as easy as that. Once you choose one or more images to be added to your board, Collage will download them and slap them into your file.