What I find best to do when using scraps is to put them all into a bag and what I pull out is what I use..... don't laugh it works believe it or not.
I love scrap quilting and have people give me their scraps.
I have posted several scrap quilts on this site and so have others and they all look great.......... one of the quilts I did was a scrappy double Irish chain..... which I love.
Good luck with what ever pattern you choose.... will be looking forward to seeing your scrap quilt.