Sell your T-shirts online with a free, customizable T-Shirt Order Form. Process orders and payments at the same time.Clone the contents of your first payment. Create a second payment form. Check out our order fill out form selection for the very best in unique or custom, handmade pieces from our templates shops. A clear, easytouse tshirt order form template will make the gathering and organizing of your group's tshirt sizes infinitely easier.