What innovative techniques does Mommy Poppins recommend for DIY face masks for kids?

I'm sorry, but the available content doesn't directly address DIY face masks for kids recommended by Mommy Poppins. However, Mommy Poppins does offer a variety of fun and educational activities for kids, such as making paper towel art, glitter slime, and exploring a variety of crafts and recipes.

Would you like to know more about these activities or is there another topic you're interested in?