They are quite wonky, and that is going to be their claim to charm. i would consider making them into smaller finished pieces -- would you consider throw pillows or a wall hanging? My thinking is that the wonkiness will be exaggerated in a larger piece, and as you're not a deeply experienced piecer, it could get overwhelming. I think that a pillow or small wall hanging made with 4 or 9 blocks (2 x 2 or 3 x 3) would be an interesting and whimsical memento for grandchildren or great grandchildren of the original maker, specially if you also wrote up a little account of your grandmother and memories about her and her quilting.