OK, so this is kind of a silly thing to be happy about, but I found a neat application that allows me to make custom Windows Phone tiles out of images.
So I took that app and this image and now my phone’s start screen looks like this:
WP8 doesn’t allow you to do much with custom tiles – I can’t assign them to existing applications, for example – but I was able to assign these three new tiles to my three most-commonly-visited web sites, so at least they aren’t JUST there to be cute.