Is this it? http://vetusware.com/download/Simply%203D%202%202.0%20DE/?id=10797 (Note: I know nothing about that website; use it at your own risk.)
The floppy disk gifs, along with most of the other 3D gifs on the site, were made with an old program called "Simply 3D". It was one of the default models, and you can add 3D text in that program, so that's how "FloppyJay" is attached to it. The logo was made in GIMP 2.8 with the Alien Neon function and the font Boombox 2. Thanks for enjoying my website!
I originally made the banner in October 2015, so forgive me if I forget any steps, but I pretty much generated a logo in GIMP by using the text 'FloppyJay' with a siick font called Boombox 2, and then applied the Alien Neon filter under the Alpha to Logo menu. Afterwards, I shrunk it to 88x31, and made the edges look nicer with a black virtual paintbrush. Hope I helped you on your logo-making endeavours!