Proudbody carries different belly kits for all types of art projects on your bulging tummy. There is the casting kit and a cool henna kit but I love their belly painting kit because pregnant moms can use it with their younger children for a totally fun bonding experience. The paints are water-based, making them both safe and easy to put on/remove. So imagine painting your pregnant belly with your other kids and then painting their faces with the same image.