Jonatan Castro Fernández is a spanish freelance graphic and interface designer who lives in Ourense, Spain. He has been designing for a few years and now he has started his own design studio called Midtone. He has released a set of 32px mania iconset which is absolutely free. You can use them on your website, web application or whatever. You can download the iconset directly here.

Beautiful Mania Iconset

Requirements: -
Demo: http://www.midtonedesign.com/portfolio/category/goodies/
License: License Free