Did it! 30 models in 30 (work)days. Inspired by several artists doing daily sketches and this guy who did 30 espresso cups in 30 days, I started on January 23 and finally finished model nr. 30 very late Friday. I spend more time on the project then expected, some of the models where a bit to ambitious for a project running next to work and every day life.
I deliberately tried to use new functions and tool I normally avoid, so I really learned a lot. And I finally became familiar with the new navigation in Cinema4D r13. It was defiantly worth all the long days/nights.