Crayon projects are always a hit. Find an old white t-shirt. One of her dad's would be fine and let her make a nightgown out of it. Give her a big sheet of paper to draw pictures on with crayons and then iron it to the shirt.
If you are crazy ambitious, make a stepping stone for the garden. Grab a big of quick-crete and a cheapie cake pan from a dollar type store. Mix the quick-crete up and pour it in the pan. (Spray the pan heavily) Let her draw designs or make designs with pretty rocks. When it dries, pop it out and there you go.
Friendship bracelets out of embroidery floss are always a hit. There are about a zillion patterns for free on-line. Many are very easy. It's just a matter of tying knots.