Here is what I made and what scraps I had left. I like to make my swatches larger to begin with so I can make more blocks with the same swatches. Saves time and effort.
As you can see I don't have much left by the time I am done. In my opinion the ease of the process and getting blocks that you did not have to cut each individual piece is worth any scraps that may be left over.
I did have the one blue scrap left and I will reuse later!