Nils von Heijne, a colleague of mine stalked me with his cellphone camera yesterday - Using the Cinemagr.am app you may capture a short video of subject, then mark any parts that should be animated. The result is this

Joar coding
from http://nilsvonheijne.tumblr.com/post/20002161883/joar-coding

Here it is in a higher resolution, courtesy of Micke.

Joar playing mario bros
from http://www.cazooka.se/joarbros.gif