I have developed a calendar plug-in for the archive page (or any other).
It can display a monthly view or a yearly view.
For each day there is a picture, a picture will be displayed at that date.
The plug-in can be downloaded at this page:http://download.rkemps.fr/archive_calendar.zip
There is a monthly example at this page:http://www.rkemps.fr/archive
If improvements should be done, let me know.