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.

Another decision you’ll need to make for your wall collage is the mounting method. Certain options are removable and won’t cause damage to walls, such as poster putty or double-sided tape.