Did some general searching about for more digital treasures:
http://www.furaffinity.net/view/6339477/ (M/M)
http://www.furaffinity.net/view/4112091/ (M/M)
http://www.furaffinity.net/view/6106085/ (F/M, MLP)

I also found this text-based M/M battle game, focused on ball-busting. Thought it was interesting enough to include here as well:
http://www.furaffinity.net/view/6332949/