The best pattern I found for strip scraps was on Sewing With Nancy years ago. The booklet is out of print but after yrs of searching it finally showed up on Amazon. It is called Scrap Happy Patchwork.
Use cut strips from 1 1/2 inch up to 5 1/2 inch to combine to make 6 1/2 in blocks that combine to make 12 1/2 in blocks.
So much fun to make and very easy.