I did one recently and opted for a "road" theme....
you could even get a little toy car with a pic of you on it and 'drive' along your road map
draw a windy roads to depict your journey within your career leading to all your different goals/destinations
crossroads to depict decisions you will need to make/have made
talk about using a lot of fule on your journey,or a hill the car struggled to climb- but made it to the top at the end, talk about stopping the car and taking in the view/or to look at your map ( after all you have to stand back before you can move forwards) talk about taking wrong turns - but then you got back onto ther right path....you get the gist
good luck at let us know how you get on