I do a lot of scrappy quilts some of my favorite are a bit more complicated that other. like the Cathedral Windows. A great scrappy quilt. In my album there are 8 scrappy quilts you can look at. Of course these are just the tip of what I have done. Take a look here
https://www.quiltingboard.com/member...bums20172.html. Some that are real easy and fun are Rail Fence and Tumbler blocks. Fun and easy for both of them. Any quilt square can be adapted into a top to become a scrappy quilt. Sometimes each block is different in fabrics and sometimes each piece is different. For me the scrappyer the better. I am now working on a 2 1/2" square scrappy batik quilt. I had all these 2 1/2" strips from a swap and they are becoming a beautiful top. Have fun that is the best part of all.