You could use all white fabrics in different textures like satin, moiré, cotton, velvet, burlap, linen, lace and eyelet etc..
Or use different white fabrics for each motif in the quilt. Like all velvet stars or alternating satin and linen stripes or log cabin pattern or maybe a row of burlap triangles then a row of silk triangles, then cotton, then velvet, etc..
Or just use all the different white fabrics in 4" squares and make it a WHITE scrappy.
How about appliqued white velvet bunnies and white satin birds and white linen leaves on a tiny WOW print and then use white satin 1/4" ribbon to create branches?
I made wedding dress quilts and used lots of white laces and pearls and beads along with the white fabrics.