I found some very interesting resources in the web regarding uniform style buttons for weblogs.
Here are they in the order of navigational discovery:
* Nifty Icons
* Archive of blog buttons
* MetaFilter blog button announcement
* Jeremy Hedley is the author of these buttons
* And here's a button maker to create one yourself
I didn't look for them without a reason.
Now you can enjoy these buttons on my weblog :-)
If you want to use them yourself, I've put together two ZIP-files of 256 blog buttons as GIFs as PNGs.
Additionally I've added my BlogChalk.