Don, I've offered up the metaphor piece as closure to an "obstacles to achieving the vision" process with the ICA method. Participants enjoy it immensely, it evokes lots of fun and laughter ... seems to function as a right-brain shift and sometimes becomes a motif with lasting value.
The best metaphor yet (and this came from the group) was a dinosaur - the obstacles to vision turned into a two-headed, fire-breathing, vision-squashing thing --- a very funny cartoon character which they actually named and adopted as an anti-mascot of sorts (since most of the obstacles were internal bureaucratic practices). I think they even took it back to the office and stuck it on the wall for awhile. In this particular case, I posed the metaphor question, threw out "building, animal, car" .... and let them run with it. Susan Travers