Sugar Pumpkin
Sense your material is by Mirage, try to go to their web site and see if you can order the material. Your salvage should have a lot number so you can put it in the search engine on their site and possibly find the same material. Just a thought! Or if you want to go with a center piece on the quilt, if the material has a design or character make a larger design and applique it to the center.
I did that to a piece I made of Pooh. I fussy cutted the pieces and appliqued it to a piece of green material and put 5" blocks around it.
But we could use a picture of the various pieces to give you a better idea if these won't work for you. Good Luck!