Rainbows w/Fruit Loops . good for a St Patty's Day/Spring craft; May just need to have her practice fine motor skills by placing them on the paper without gluing them because she'll want to eat them LOL
You might find the perfect art/rainbow party craft or activity here :) 36 Beautiful and Engaging Rainbow Activities for all ages: Babies, Toddlers, Preschoolers and even Older Kids! From Fun at Home with Kids
Rainbows were always something I loved to draw when I was in elementary school, so I believe this activity would be useful in the classroom because it gives several different craft ideas for creating rainbows.