You are looking at Zazzle's custom Worlds Greatest Dad postage section, where you can find a variety of Worlds Greatest Dad designs for small custom stamps. Measuring 1.8" x 1.3", small Zazzle stamps are available for customization or ready to buy as is. Most Zazzle.com custom postage ships within 48 hours after the order is placed. Change the border color and denomination, or add your own images and text for free. There is no minimum order, so get your small custom postage today! To see other related products, check out the main worlds greatest dad page.