Lock-in idea: Baptismal remembrance bowls for the kids to make and take home. With a bigger lump of clay you can use an elbow or knee in place of a thumb - my mom used that method to teach my kids and they loved getting muddy ;
Fourth of July Firework Salt Painting - Busy Mommy Media _ This is such a cool art project for kids! It looks so neat when it is done. I love that it uses stuff I already have on hand. This would be awesome for a rainy day activity!