Here is an STi-R avatar for those of you who own this radar detector. Simply save the avatar to your computer. Then under your Profile settings upload the saved avatar as your personal avatar. Alternatively, you can right-click on the avatar, copy the URL for the image ("Copy image location" in Firefox), and then go to your Profile settings and paste this URL into the box labeled "Upload Avatar from a URL:".
Here are some high resolution photos of the STi-R's controller and display modules.