I agree with yel that you may be able to swap quilting for tops. You might also be able to sell some of them on eBay or Etsy, or occasionally to other quilters through a guild. You might also consider quilting them yourself. I used Marti Michell's book Machine Quilting in Sections to quilt several very large quilts on my Bernina before I got a longarm. There are several different methods to quilt in sections, and it's a new skill that you might enjoy.