We needed something larger than a large picture to hang on our cathedral ceiling over the fireplace so this is where one 40x 50" quilt could go. Generally, that size is for a throw or baby quilt, so they end up on the couch. I try to avoid making smaller quilts since my walls are already with photos and craft stuff
Other possibilities include pillow covers, someone has already mentioned table toppers. Small quilts to be folded and placed at the end of the bed.