An idea just hit me. What if I made it so that users could upload an avatar to a server I'd make. When the program is run, the program automatically auto-updates itself. Then, anyone running the program while playing would have the avatars appear below their name as the menu icon. When they face someone else in multiplayer, the menu is placed depending on whether they're Uke or Tori. If they're Uke and the Tori player also is running the program and has an avatar uploaded, the menu with Uke's picture will be under Uke, and the avatar of the Tori player will be drawn beneath Tori.
Get me?