I had the intention of doing something similar but never got around to it. It's good to see others think similarly sometimes
I want to point out that the Blender file requires version 2.74 of Blender to open it (the latest version of Blender is 2.75). I had a quite recent version of 2.68 so was unable to open it without updating (but I should've done it sooner anyway!)
Because I'm nice, I decided to convert it to OBJ format as it's more portable so more people can use it.
I uploaded it to Mediafire; it's in a zip, which contains the obj and mtl files as well as the original blender file; if it's not the correct format of OBJ (apparently there can be different versions for windows, linux, and mac), you can let me know if you'd like to re-export it for some specific version of OBJ.
http://www.mediafire.com/download/37m0wjd3zc1ddg0/SFML_Logo.zip