Scrum Methodology Cards

One of the most recent projects I am dealing with is a set of planning poker carda designed ad hoc for the scrum model implemented in bitRocket.dev, the software house of which I am a co-founder member. The set is full of quotes from different areas of nerd and geek culture, this design decision is the result of an analysis of the target to which this deck of cards (soon available as an open source resource) refers, i.e. developers. What do you think? Do you use scrum methodology in your company?