Guys, thanks for the great feedback, that means a lot to me.
Markus later explained to me he's not very comfortable customizing action figures, but his friend Harry Flügge is. His action figures are featured on Markus' site, as well as other people's contributions.
For editing I used AVS video editor, which allowed me to adjust the colour, contrast and lighting of the video, as well as superimpose those pictures on top of the video. For the titles I used Windows Live Movie Maker.
