I thought this concept was interesting. It is a calender and it was named "Helvetica Calendar 2008." It was produced in 2008 to celebrate 50 years of Helvetica typeface, but never was produced it missed production time. I liked the layout, also the white against the black, the overall cleanness of it. I also thought the outlines of the other date in the background where interesting.

Here's a link about it:
http://www.effektivedesign.co.uk/#3077/Helvetica-Calendar

Designer: Grieg Anderson
Source: Effecktive Design