Enter design consulting firm nForm with their own set of "user experience trading cards". These provide more tactical methods, apparently focused on UI design, with cards for "Ethnography" (pictured), "Taxonomy" and "Usability Capture Software".
The IDEO cards are probably more valuable due to the greater diversity of ideas presented (although they do overlap internally in some cases) and are more of a way to think about a problem; whereas the nForm cards are more of a primer to user-centered design methods. And the IDEO cards are tangible in a more important way - you can order a set of actual cardsfor reference and sharing.