It really depends on if she is big on putting things in her mouth or not. With close supervision she should be able to use crayons, markers, and fingerpaints. Also homemade play dough is great. Let me know if you want the recipe. You can let her paint with food, like yogurt, tomato sauce, mustard, beet juice, blueberry juice, any juice really, etc. on paper or a tray. Given a palette or little containers I'm sure she'd have a blast mixing different colors together. You could show her how to rip paper and help her glue it like a collage or use beans, seeds, or pasta to glue like a collage. Watered down paint would be good for brushes or sponges, you can show her how to flick or splatter it, messy but fun. With salt dough you can cut out shapes with cookie cutters and bake them for her to paint on.