A block with a chenille design on it
maybe sew "tags" into the seams on a 9 patch blocks, using different fabrics in each block
tie a few blocks with different threads, yarns, ribbons
couch designs on some blocks, using different textured materials. Make some circles, squares, triangles, etc.
Applique some fake fur pieces to blocks
Pintuck some blocks
3 dimensional flying geese blocks
3 dimensional rose buds appliqued onto a block
different textured fabrics appliqued onto the outside border of the quilt