Answer: THE SPIRITS WITHIN
The final jigsaw puzzle looks like this:
Reading the letters along the ripple lines top to bottom gives names of fabrics with letters missing.
JERS*Y COOLMAX CAMBRIC
DUCK GABARDINE VELOUR
LACE CHEESECLOTH *PANDEX
CHIFFON RI*STOP BURLAP MUSL*N
O*GANDY S*LK LYCRA COT*ON NYLON SERGE
VELVETEEN SEER*UCKER CORDUROY
SACKCLOTH *OOL LINEN RAYON DOBBY G*NGHAM
*AFFETA CAS*MERE GAUZE
Reading the missing letters (again along the ripples) gives the answer, THE SPIRITS WITHIN.
The puzzle was inspired by this real quilt designed and made by Evelyn Judson.