I've made a favicon that I can use to replace the default Blogger favicon. Favicons are small images that appear in the address bar, and next to links in a list of bookmarks or favorites, for example. The one to the left is 32x32 pixels and the one in the address bar is 16x16 pixels. This one is heavily inspired (read as: I copied it and made it into a favicon) by this symbol, created by Fr. Jordan Stratford+. I really like what he did with this eleven-fold, "MDCCCXC" cross. It represents "Big G", contemporary Gnosticism (and therefore a certain set of principles that define said beastie, of which I adhere to), which dates primarily to France with the 1890 (MDCCCXC) Restoration.
To download the favicon click here for the .ico (icon file) or here for the .png (image file). Then simply upload it to your server, or an image/file sharing site (Flickr, Picasa, etc.) and copy down the url, which you'll need a bit later. If you're not using your own server, it's probably best to go with the .png version. I uploaded the image via a post to a Blogger test blog of mine, and then opened up the post, right-clicked on the image and copied the location of it to get its url.
To make sure the favicon shows up like it should on your site/blog, you need to link to it in your html. To read some info about how to install a favicon, click here and read the Instructions (ignore the Create your favicon section, unless of course you have an image of your own you'd like to make into a favicon) from an excellent site, Blogger Buster.
Feel free to use it for your own website or blog. Enjoy!