Sundials are more commonly used as decorative garden accessories than to tell the time according to the sun's placement in the sky. There are a number of styles, colors and sizes of sundials available. They are usually made of brass, cast iron or stainless steel. Many online sundial suppliers offer engraving services. Many will even personalize your sundial with photos or other details to suit your taste or garden. Sundials can feature birds, dragonflies, angels, your child's footprints, your family pet, the names of your family, etc. Sundials range widely according to price. A small aluminum sundial will cost approximately $50 online, while larger bronze sundials can cost upward of $500 online.