The image gallery for Firefox themed pictures, images, banners and buttons has been updated with more uploaded contributions.

• International artwork
  Firefox buttons, banners and other artwork in languages other than English.
• Screenshots
  Desktop pics & screenshots from your computers, phones, games and other digital devices!
• Spreading Firefox
  Pictures of Firefox marketing in action (you passing out flyers at school, a Firefox poster on your wall, etc.)
• Wallpaper
  Promotional Firefox wallpaper for your desktop.
• Miscellaneous
  Anything that doesn't fit into the galleries above.

I would specifically point people to rakaz's artwork. It's the best out there! Go change your desktop in some colorful Firefox image in anticipation of 9 November =)