What kind of machine do you have? Since you know how to use yours, and your granddaughter has used it a bit, you might stay in the same product line. It need not be the top of the line, but certainly would consider something with the auto threader, 1 step buttonhole and some stretch stitches. Perhaps even a lower level computer chip machine -- they tend to jam less and she already knows more about computers than most of us! I envy her -- may you have many granny & g-daughter hours to share!