It is really easy to sew a painting apron for your kid if you are a DIYer. All you need is fabric, patterns, a sewing machine and thread. You can choose whichever fabric you want. However, waterproof fabric is the best material for kids’ aprons. Another way is to sew a layer of waterproof material over a regular fabric like cotton or polyester. You can find a lot of different ways to cut and sew an apron. So, go with the design you like. You can also add a pocket or two if you want. After cutting both the fabric and the waterproof material, pin them both together to align them the same way. After that, you can sew them both together.