Upload Button – rebound (PSD)
There’s also the live HTML/CSS/jQuery example available here, made by Félix Péault.
Upload Button – rebound (PSD) is a free UI design resource made by Dribbble user Radu Jianu. As far as I can tell, its license is Free for Commercial and Personal Purposes.
Helpful hint: Dribbble users are nice. If the license is unknown, it is usually because they forgot to mention it explicitly; not because they were being stingy. Ask nicely and they will probably allow you to use it.