If you need a great-looking set of glossy icons for your brand-new of redesigned application, make sure to try Glossy Toolbar Icon Set! It is a set of pro-level and high-quality interface icons that will suit any modern business application.
Downloads: 39646 - Demo - Download Now

Large Black Icons is one of the most versatile icon set released. It contains images suitable for Windows, Linux MacOS and even iPhone applications. File formats provided include ICO, PNG and BMP, as well as PSD, SVG, PDF and AI vector formats.
Downloads: 39447 - Demo - Download Now

Yellow Web Buttons offer a bundle of navigation images for social networks and custom web sites. The icons are easy on the eye, and provide a uniform theme painted in yellow. The delicious buttons for delicious sites:)
Downloads: 39493 - Shareware - Download Now

Free collection of ready stock icons for professional use, provide you with a wide array of glyphs that let you create an engaging front-end for your software without the need to spend weeks on designing your own icons. Icon sizes: 32x32 and 48x48.
Downloads: 39605 - Freeware - Download Now

12x12 Free Toolbar Icons pack contains everything you need for your web site or application toolbar
Downloads: 40038 - Freeware - Download Now