This page exists to help former ForumPlanet users find their old GameSpy-provided avatar, or just to provide a bit of a nostalgia hit.
The icons were launched along with ForumPlanet in early 2001. As with most of the artwork on the GameSpy Network at the time, they were drawn by Gabe from Penny Arcade. Collation was possible thanks to the Internet Archive's Wayback Machine. A total of 74 avatars are listed here, which I believe is the entire default gallery. I haven't included a handful of custom avatars that were made for GSI staff and forum competition winners, as I consider these to be owned by their respective recipients. As for the rest, they were the property of GameSpy Industries, which no longer exists. Given that they were freely available while under GameSpy's watch, I am considering them to be fair game for editing and sharing now that the company is gone.
As far as Gabe and I are aware, the original artwork has been lost to time, preventing us from getting high-res versions of the avatars for more modern applications. Instead, I've created the enhanced avatars using Vector Magic, and touched them up using a graphics program wherever the vectorization process left rough patches. Alpha channel transparency was also added. Finally, they were optimized with TinyPNG, reducing their filesize by 50-60%. Overall, some avatars converted better than others, but most came out alright. They are 80x80 PNGs, but have been shrunk on this page to the same 50x50 dimension as the originals GIFs for easy comparison and better appearance on hi-DPI displays. Enjoy!