John, lovely cushions. Your sense of craftsmanship shows in all your sewing.
Are the leftovers cut in squares or strips? If they are strips try a little string piecing. It would be a new technique, and you could add a few strips from other projects. You don't have to use the strip pieced "fabric" you make immediately. You can keep it for backing other quilts. But it also makes quick but interesting knee rugs and table runners and mats to protect that beautiful furniture.
I often spend a day sewing "string scraps" into pieces if "fabric" about 22" square. I just keep the pieced fabric until I need it.
These will give you some ideas of string piecing -
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It's also amazing what designs you can make from just a single sized restangle -
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cover quilt on this book is made entirely from 2.5" X 4.5" rectangles - another good way to use scraps.