My sister came across a fun pattern. It is called “Hag’s cushion”.
Basically, it is nothing but a simple log cabin design. Each pillow case consists of four log cabin blocks made of four different fabrics. The four blocks are joined and then sewn into a case. After that, each pillow case has a front side where you can see only two of the fabrics used, and a back side where you can find the other two fabrics. The hag thing about it is that you cannot make out the final seam after stuffing them because it is not at either of the sides where you would usually look for it.
They are very easy but the result is stunning. And there are endless possibilities as to fabric choice and making up the log cabin blocks. I have yet to find out what they would look like when using only two fabrics or as many as twelve!