Oana Befort is an amazing artist and graphic designer!
Smashing Magazine there is quite an extensive list of calendars...check it out!
This one is kind of creepy, but it works, right? Created by blackwidowbalm.com
Vicki Wenderlich's site has wallpapers for every month!
There are a bazillion more calendars out there...do you have a special one to share? Feel free to leave the URL to your favorite so we can check it out! Have an awesome October!