Keep it healthy and have the students create a fruit bouquet for Mother's Day. I've done this with my class for two years in a row. They absolutely love the projects, and so do the Moms.
This craftivity does take some prep work, but the work is worth the effort as you watch students collaboratively work together for one of the best gifts they will ever give mom. You will experience creativity from your students in a way you never have before, so get your camera ready and create a wonderful experience.