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.

Your summer aesthetic is warm, ... and that's a lot easier to achieve with these summer wall collage kits on ... Summer Days Blue Wall Collage. Etsy. $15.37.

It's a meticulous project; all the images have to effortlessly blend with each other, which requires the right sizing and color scheme. Sometimes I don't even know where to start to establish the vibe ...