I've designed this icon set for our company's framework – Agile Toolkit. Below is the link where you can download package including .psd file and ready-to-use CSS sprite. The idea was to create icons that will fit into a 16x16px container, that is why psd file has prepared multiple background shapes (circles,squares, etc.).
Download package and read tutorial here: www.agiletech.ie/blog/128x16x16
Use it for your own good!
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Eat fruit, design UI, have fun