Yurtopia, maker of soft rubber tip earbud enhancers that slip over existing earbud-style headphones, called yurbuds, this week launched its "Size yur Ear!" application at the Apple App Store (available here). The application allows users to submit photos of their ear and purchase custom-sized earbuds, which comes in six sizes, directly from an iPhone or iPod touch. The yurbuds earbud enhancers, when sized using the "Size yur Ear!" iPhone App, are guaranteed not to fall out, remain comfortable for hours and deliver exceptional sound quality for $20, according to yurtopia, the company that makes the tips. The application also offers a video tutorial that teaches users how to use the application to ensure the proper custom fit is achieved.