Store them for now - don't get rid of them! You may regret it down the road if a stranger is using something that was made just for your Mom. Maybe someday you'll want to piece them into quilts for grandkids, other relatives, etc. I saved some of Mom's blouses (died 1 yr ago) & am planning to make wall hangings or throws for each of my siblings with the fabric from those blouses. They evoke fond memories - your Mom's quilts can do the same.