How about a strip quilt using scraps sewed onto a foundation back? That's what I did as the lady didn't have any scraps so let her dig into mine since they procreate during the night, then we got her a correct foot for 1/4" sewing. She just had to be close to perfect on that very 1st strip and the rest could be close but not as perfect. And if she goofs up, they're only scraps. I consider them freebies anyway. This will give her practice on getting a1/4" seam without all the stress.