Noah Scalin is the creator of Skull-A-Day and author of Skulls. His latest book 365: A Daily Creativity Journal is designed to help people make their own yearlong creative projects. You can see all 365 of the skulls Noah made HERE
and it goes on to list 8 different ideas people had. hmmmmmmmmm. i really want to do this, but it has to be simple. maybe a PICTURE a day?
(my favorite is the people who are going to thank someone each day and document it)
check out the link above for more info